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Finding the Fourth Proportional to 468,847.20, 703,197.90 and 131,854.80

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Solution

The fourth proportional to 468,847.20, 703,197.90 and 131,854.80 is: 197,761.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,847.20 : 703,197.90 = 131,854.80 : x
  2. Step 2: Convert to fraction form
    468,847.20/703,197.90 = 131,854.80/x
  3. Step 3: Cross multiply
    468,847.20x = 703,197.90 × 131,854.80
  4. Step 4: Simplify right side
    468,847.20x = 92,720,018,464.92
  5. Step 5: Solve for x
    x = 92,720,018,464.92/468,847.20
  6. Step 6: Final answer
    x = 197,761.70

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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.