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Finding the Fourth Proportional to 168,625.20, 253,375.20 and 149,379.60

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Solution

The fourth proportional to 168,625.20, 253,375.20 and 149,379.60 is: 224,456.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,625.20 : 253,375.20 = 149,379.60 : x
  2. Step 2: Convert to fraction form
    168,625.20/253,375.20 = 149,379.60/x
  3. Step 3: Cross multiply
    168,625.20x = 253,375.20 × 149,379.60
  4. Step 4: Simplify right side
    168,625.20x = 37,849,086,025.92
  5. Step 5: Solve for x
    x = 37,849,086,025.92/168,625.20
  6. Step 6: Final answer
    x = 224,456.88

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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.