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Finding the Fourth Proportional to 362,606.62, 543,910.14 and 137,915.20

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Solution

The fourth proportional to 362,606.62, 543,910.14 and 137,915.20 is: 206,872.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,606.62 : 543,910.14 = 137,915.20 : x
  2. Step 2: Convert to fraction form
    362,606.62/543,910.14 = 137,915.20/x
  3. Step 3: Cross multiply
    362,606.62x = 543,910.14 × 137,915.20
  4. Step 4: Simplify right side
    362,606.62x = 75,013,475,740.13
  5. Step 5: Solve for x
    x = 75,013,475,740.13/362,606.62
  6. Step 6: Final answer
    x = 206,872.88

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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.