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Finding the Fourth Proportional to 125,626.95, 173,380.16 and 71,929.22

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Solution

The fourth proportional to 125,626.95, 173,380.16 and 71,929.22 is: 99,270.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,626.95 : 173,380.16 = 71,929.22 : x
  2. Step 2: Convert to fraction form
    125,626.95/173,380.16 = 71,929.22/x
  3. Step 3: Cross multiply
    125,626.95x = 173,380.16 × 71,929.22
  4. Step 4: Simplify right side
    125,626.95x = 12,471,098,985.20
  5. Step 5: Solve for x
    x = 12,471,098,985.20/125,626.95
  6. Step 6: Final answer
    x = 99,270.89

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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.