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Finding the Fourth Proportional to 125,306.88, 187,542.86 and 100,229.28

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Solution

The fourth proportional to 125,306.88, 187,542.86 and 100,229.28 is: 150,010.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,306.88 : 187,542.86 = 100,229.28 : x
  2. Step 2: Convert to fraction form
    125,306.88/187,542.86 = 100,229.28/x
  3. Step 3: Cross multiply
    125,306.88x = 187,542.86 × 100,229.28
  4. Step 4: Simplify right side
    125,306.88x = 18,797,285,325.79
  5. Step 5: Solve for x
    x = 18,797,285,325.79/125,306.88
  6. Step 6: Final answer
    x = 150,010.00

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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.