There are 172 students in the fifth grade in a certain school, the number of fourth graders is 3/8 of the number of fifth graders, and the number of third graders is 8/3 of the fourth graders. How many people are there in the third grade?
某校五年级有学生172人，四年级人数是五年级人数的(3/8)，三年级人数是四年级人数的(8/3)．三年级有多少人？
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">8 / 3</gadget>
<output>8/3 = around 2.666667</output>

<gadget id="calculator">172 * (3/8) * (8/3)</gadget>
<output>172</output>

<result>172</result>