To buy a 180m**2 commercial house, the first payment is the second payment (7/8), and the second payment is the third payment (8/9). It is known that the third payment is more expensive than the first If you pay 60,000 yuan more, how much will it cost to buy this house?
买一套180m**2的商品房，第一次交房款是第二次的(7/8)，第二次交房款是第三次的(8/9)，已知第三次比第一次多交6万元，买这套房子需要多少钱？
<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">(8/9) * (7/8)</gadget>
<output>7/9 = around 0.777778</output>

<gadget id="calculator">1 - (7/9)</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">6 / (2/9)</gadget>
<output>27</output>

<gadget id="calculator">27 * (8/9) * (7/8)</gadget>
<output>21</output>

<gadget id="calculator">27 * (8/9)</gadget>
<output>24</output>

<gadget id="calculator">21 + 24 + 27</gadget>
<output>72</output>

<result>72</result>