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Finding the Fourth Proportional to 125,565.78, 188,387.55 and 59,003.22

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Solution

The fourth proportional to 125,565.78, 188,387.55 and 59,003.22 is: 88,523.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,565.78 : 188,387.55 = 59,003.22 : x
  2. Step 2: Convert to fraction form
    125,565.78/188,387.55 = 59,003.22/x
  3. Step 3: Cross multiply
    125,565.78x = 188,387.55 × 59,003.22
  4. Step 4: Simplify right side
    125,565.78x = 11,115,472,057.91
  5. Step 5: Solve for x
    x = 11,115,472,057.91/125,565.78
  6. Step 6: Final answer
    x = 88,523.10

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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.