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Finding the Fourth Proportional to 317,469.60, 475,426.80 and 151,063.20

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Solution

The fourth proportional to 317,469.60, 475,426.80 and 151,063.20 is: 226,224.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,469.60 : 475,426.80 = 151,063.20 : x
  2. Step 2: Convert to fraction form
    317,469.60/475,426.80 = 151,063.20/x
  3. Step 3: Cross multiply
    317,469.60x = 475,426.80 × 151,063.20
  4. Step 4: Simplify right side
    317,469.60x = 71,819,493,773.76
  5. Step 5: Solve for x
    x = 71,819,493,773.76/317,469.60
  6. Step 6: Final answer
    x = 226,224.79

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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.