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Finding the Fourth Proportional to 73,114.70, 109,801.65 and 56,515.10

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Solution

The fourth proportional to 73,114.70, 109,801.65 and 56,515.10 is: 84,872.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,114.70 : 109,801.65 = 56,515.10 : x
  2. Step 2: Convert to fraction form
    73,114.70/109,801.65 = 56,515.10/x
  3. Step 3: Cross multiply
    73,114.70x = 109,801.65 × 56,515.10
  4. Step 4: Simplify right side
    73,114.70x = 6,205,451,229.92
  5. Step 5: Solve for x
    x = 6,205,451,229.92/73,114.70
  6. Step 6: Final answer
    x = 84,872.83

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1.5x scale

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.