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Finding the Fourth Proportional to 109,049.10, 150,477.39 and 63,737.70

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Solution

The fourth proportional to 109,049.10, 150,477.39 and 63,737.70 is: 87,951.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,049.10 : 150,477.39 = 63,737.70 : x
  2. Step 2: Convert to fraction form
    109,049.10/150,477.39 = 63,737.70/x
  3. Step 3: Cross multiply
    109,049.10x = 150,477.39 × 63,737.70
  4. Step 4: Simplify right side
    109,049.10x = 9,591,082,740.60
  5. Step 5: Solve for x
    x = 9,591,082,740.60/109,049.10
  6. Step 6: Final answer
    x = 87,951.97

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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.