A cuboid model, the sum of the lengths of the sides is 72 decimeters, and the ratio of length, width and height is 4:3:2, what is the volume of this model in cubic decimeters?
一个长方体模型，棱长之和是72分米，长、宽、高的比是4：3：2，这个模型的体积是多少立方分米．
<gadget id="calculator">72 / 4</gadget>
<output>18</output>

<gadget id="calculator">4 + 3 + 2</gadget>
<output>9</output>

<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">3 / 9</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">18 * (4/9) * 18 * (1/3) * 18 * (2/9)</gadget>
<output>192</output>

<result>192</result>