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Finding the Fourth Proportional to 317,217.60, 475,891.20 and 106,876.80

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Solution

The fourth proportional to 317,217.60, 475,891.20 and 106,876.80 is: 160,337.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,217.60 : 475,891.20 = 106,876.80 : x
  2. Step 2: Convert to fraction form
    317,217.60/475,891.20 = 106,876.80/x
  3. Step 3: Cross multiply
    317,217.60x = 475,891.20 × 106,876.80
  4. Step 4: Simplify right side
    317,217.60x = 50,861,728,604.16
  5. Step 5: Solve for x
    x = 50,861,728,604.16/317,217.60
  6. Step 6: Final answer
    x = 160,337.03

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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.