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Finding the Fourth Proportional to 125,761.39, 173,549.89 and 71,323.92

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Solution

The fourth proportional to 125,761.39, 173,549.89 and 71,323.92 is: 98,426.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,761.39 : 173,549.89 = 71,323.92 : x
  2. Step 2: Convert to fraction form
    125,761.39/173,549.89 = 71,323.92/x
  3. Step 3: Cross multiply
    125,761.39x = 173,549.89 × 71,323.92
  4. Step 4: Simplify right side
    125,761.39x = 12,378,257,246.00
  5. Step 5: Solve for x
    x = 12,378,257,246.00/125,761.39
  6. Step 6: Final answer
    x = 98,426.53

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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.