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Finding the Fourth Proportional to 71,353.30, 107,046.15 and 41,755.90

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Solution

The fourth proportional to 71,353.30, 107,046.15 and 41,755.90 is: 62,643.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,353.30 : 107,046.15 = 41,755.90 : x
  2. Step 2: Convert to fraction form
    71,353.30/107,046.15 = 41,755.90/x
  3. Step 3: Cross multiply
    71,353.30x = 107,046.15 × 41,755.90
  4. Step 4: Simplify right side
    71,353.30x = 4,469,808,334.79
  5. Step 5: Solve for x
    x = 4,469,808,334.79/71,353.30
  6. Step 6: Final answer
    x = 62,643.33

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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.