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Finding the Fourth Proportional to 67,787.52, 101,716.72 and 49,220.88

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Solution

The fourth proportional to 67,787.52, 101,716.72 and 49,220.88 is: 73,857.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,787.52 : 101,716.72 = 49,220.88 : x
  2. Step 2: Convert to fraction form
    67,787.52/101,716.72 = 49,220.88/x
  3. Step 3: Cross multiply
    67,787.52x = 101,716.72 × 49,220.88
  4. Step 4: Simplify right side
    67,787.52x = 5,006,586,469.11
  5. Step 5: Solve for x
    x = 5,006,586,469.11/67,787.52
  6. Step 6: Final answer
    x = 73,857.05

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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.