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Finding the Fourth Proportional to 89,472.52, 123,473.60 and 49,187.96

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Solution

The fourth proportional to 89,472.52, 123,473.60 and 49,187.96 is: 67,880.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,472.52 : 123,473.60 = 49,187.96 : x
  2. Step 2: Convert to fraction form
    89,472.52/123,473.60 = 49,187.96/x
  3. Step 3: Cross multiply
    89,472.52x = 123,473.60 × 49,187.96
  4. Step 4: Simplify right side
    89,472.52x = 6,073,414,497.86
  5. Step 5: Solve for x
    x = 6,073,414,497.86/89,472.52
  6. Step 6: Final answer
    x = 67,880.22

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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.