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Finding the Fourth Proportional to 225,158.87, 338,124.68 and 199,915.43

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Solution

The fourth proportional to 225,158.87, 338,124.68 and 199,915.43 is: 300,216.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,158.87 : 338,124.68 = 199,915.43 : x
  2. Step 2: Convert to fraction form
    225,158.87/338,124.68 = 199,915.43/x
  3. Step 3: Cross multiply
    225,158.87x = 338,124.68 × 199,915.43
  4. Step 4: Simplify right side
    225,158.87x = 67,596,338,105.61
  5. Step 5: Solve for x
    x = 67,596,338,105.61/225,158.87
  6. Step 6: Final answer
    x = 300,216.20

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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.