The sum of the sides of a cuboid is 72 decimeters, and the ratio of length, width, and height is 3:2:1. What is the volume of this cuboid in cubic meters?
一个长方体棱长和是72分米，长、宽、高的比是3：2：1，这个长方体的体积是多少立方米．
<gadget id="calculator">72 / 4</gadget>
<output>18</output>

<gadget id="calculator">3 + 2 + 1</gadget>
<output>6</output>

<gadget id="calculator">2 / 6</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">3 / 6</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">18 * (1/3) * 18 * (1/6) * 18 * (1/2)</gadget>
<output>162</output>

<result>162</result>