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Finding the Fourth Proportional to 172,517.25, 258,808.56 and 60,229.53

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Solution

The fourth proportional to 172,517.25, 258,808.56 and 60,229.53 is: 90,355.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,517.25 : 258,808.56 = 60,229.53 : x
  2. Step 2: Convert to fraction form
    172,517.25/258,808.56 = 60,229.53/x
  3. Step 3: Cross multiply
    172,517.25x = 258,808.56 × 60,229.53
  4. Step 4: Simplify right side
    172,517.25x = 15,587,917,928.78
  5. Step 5: Solve for x
    x = 15,587,917,928.78/172,517.25
  6. Step 6: Final answer
    x = 90,355.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.