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Finding the Fourth Proportional to 439,591.87, 659,389.43 and 107,167.87

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Solution

The fourth proportional to 439,591.87, 659,389.43 and 107,167.87 is: 160,752.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,591.87 : 659,389.43 = 107,167.87 : x
  2. Step 2: Convert to fraction form
    439,591.87/659,389.43 = 107,167.87/x
  3. Step 3: Cross multiply
    439,591.87x = 659,389.43 × 107,167.87
  4. Step 4: Simplify right side
    439,591.87x = 70,665,360,713.61
  5. Step 5: Solve for x
    x = 70,665,360,713.61/439,591.87
  6. Step 6: Final answer
    x = 160,752.20

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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.