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Finding the Fourth Proportional to 349,120.88, 481,787.22 and 198,217.88

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Solution

The fourth proportional to 349,120.88, 481,787.22 and 198,217.88 is: 273,540.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,120.88 : 481,787.22 = 198,217.88 : x
  2. Step 2: Convert to fraction form
    349,120.88/481,787.22 = 198,217.88/x
  3. Step 3: Cross multiply
    349,120.88x = 481,787.22 × 198,217.88
  4. Step 4: Simplify right side
    349,120.88x = 95,498,841,359.49
  5. Step 5: Solve for x
    x = 95,498,841,359.49/349,120.88
  6. Step 6: Final answer
    x = 273,540.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.