For a cuboid model, the sum 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 meters?
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米？
<result>0.192</result>