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Finding the Fourth Proportional to 87,601.44, 120,892.32 and 49,885.92

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Solution

The fourth proportional to 87,601.44, 120,892.32 and 49,885.92 is: 68,843.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,601.44 : 120,892.32 = 49,885.92 : x
  2. Step 2: Convert to fraction form
    87,601.44/120,892.32 = 49,885.92/x
  3. Step 3: Cross multiply
    87,601.44x = 120,892.32 × 49,885.92
  4. Step 4: Simplify right side
    87,601.44x = 6,030,824,604.13
  5. Step 5: Solve for x
    x = 6,030,824,604.13/87,601.44
  6. Step 6: Final answer
    x = 68,843.90

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1.5x scale

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.