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Finding the Fourth Proportional to 137,753.12, 206,435.28 and 58,839.68

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Solution

The fourth proportional to 137,753.12, 206,435.28 and 58,839.68 is: 88,176.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,753.12 : 206,435.28 = 58,839.68 : x
  2. Step 2: Convert to fraction form
    137,753.12/206,435.28 = 58,839.68/x
  3. Step 3: Cross multiply
    137,753.12x = 206,435.28 × 58,839.68
  4. Step 4: Simplify right side
    137,753.12x = 12,146,585,815.91
  5. Step 5: Solve for x
    x = 12,146,585,815.91/137,753.12
  6. Step 6: Final answer
    x = 88,176.48

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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.