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Finding the Fourth Proportional to 71,550.87, 107,314.97 and 43,103.27

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Solution

The fourth proportional to 71,550.87, 107,314.97 and 43,103.27 is: 64,648.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,550.87 : 107,314.97 = 43,103.27 : x
  2. Step 2: Convert to fraction form
    71,550.87/107,314.97 = 43,103.27/x
  3. Step 3: Cross multiply
    71,550.87x = 107,314.97 × 43,103.27
  4. Step 4: Simplify right side
    71,550.87x = 4,625,625,374.86
  5. Step 5: Solve for x
    x = 4,625,625,374.86/71,550.87
  6. Step 6: Final answer
    x = 64,648.07

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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.