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Finding the Fourth Proportional to 172,930.14, 238,696.88 and 101,333.43

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Solution

The fourth proportional to 172,930.14, 238,696.88 and 101,333.43 is: 139,871.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,930.14 : 238,696.88 = 101,333.43 : x
  2. Step 2: Convert to fraction form
    172,930.14/238,696.88 = 101,333.43/x
  3. Step 3: Cross multiply
    172,930.14x = 238,696.88 × 101,333.43
  4. Step 4: Simplify right side
    172,930.14x = 24,187,973,074.03
  5. Step 5: Solve for x
    x = 24,187,973,074.03/172,930.14
  6. Step 6: Final answer
    x = 139,871.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.