A cylindrical wooden rod is cut into several parts from top to bottom along the diameter of its bottom surface, and then assembled with the height of the cylinder to form an approximate cuboid equal to its volume. It is known that the lateral area of the cylindrical stick is 75.36 square centimeters, and the width of the assembled cuboid is 4 centimeters. What is the volume of the cuboid in cubic centimeters.
一根圆柱形木棒，沿它的底面直径从上到下切成若干份，然后以圆柱体的高做高拼成一个和它体积相等的近似长方体．已知圆柱体木棒的侧面积是75.36平方厘米，拼成的长方体的宽是4厘米．长方体的体积是多少立方厘米．
<gadget id="calculator">2 * 3.14 * 4</gadget>
<output>25.12</output>

<gadget id="calculator">25.12 / 2</gadget>
<output>12.56</output>

<gadget id="calculator">75.36 / 25.12</gadget>
<output>3</output>

<gadget id="calculator">12.56 * 4 * 3</gadget>
<output>150.72</output>

<result>150.72</result>