An iron machine part, the upper part is conical, the lower part is cylindrical, the bases are equal in area, and the height of the cone is twice that of the cylinder. Given that the volume of the cone is 9.42dm**3, find the total weight of the part. (Weighs 7.8kg per cubic decimeter of iron)
一个铁制机器零件，上半部分是圆锥形，下半部分是圆柱形，底面积相等，圆锥的高是圆柱的2倍．已知圆锥的体积是9.42dm**3，求零件的总重量．(每立方分米铁重7.8kg)
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">9.42 * (3/2)</gadget>
<output>14.13</output>

<gadget id="calculator">9.42 + 14.13</gadget>
<output>23.55</output>

<gadget id="calculator">23.55 * 7.8</gadget>
<output>183.69</output>

<result>183.69</result>