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Finding the Fourth Proportional to 125,487.77, 173,167.07 and 68,125.86

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Solution

The fourth proportional to 125,487.77, 173,167.07 and 68,125.86 is: 94,010.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,487.77 : 173,167.07 = 68,125.86 : x
  2. Step 2: Convert to fraction form
    125,487.77/173,167.07 = 68,125.86/x
  3. Step 3: Cross multiply
    125,487.77x = 173,167.07 × 68,125.86
  4. Step 4: Simplify right side
    125,487.77x = 11,797,155,226.80
  5. Step 5: Solve for x
    x = 11,797,155,226.80/125,487.77
  6. Step 6: Final answer
    x = 94,010.40

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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.