People's Liberation Army troop rushes from the garrison to a certain place to fight against floods. If they drive for one hour and increase the speed by one-fifth, they can arrive 20 minutes earlier than the scheduled time; if they drive 72 kilometers at the original speed, Then increase the speed by one-third, and you can arrive 30 minutes earlier than the scheduled time. Ask: How many kilometers does this PLA unit need to travel in total?
一支解放军部队从驻地乘车赶往某地抗洪抢险，如果行驶1个小时后，将车速提高五分之一，就可比预定时间提前20分钟赶到；如果先按原速度行驶72千米，再将车速提高三分之一，就可比预定时间提前30分钟赶到，问：这支解放军部队一共需要行多少千米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 + (1/3)</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">1 / (4/3)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 - (3/4)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">180 * (1/4)</gadget>
<output>45</output>

<gadget id="calculator">30 / 45</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 - (2/3)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">72 / (1/3)</gadget>
<output>216</output>

<result>216</result>