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Finding the Fourth Proportional to 87,793.92, 120,912.48 and 75,853.44

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Solution

The fourth proportional to 87,793.92, 120,912.48 and 75,853.44 is: 104,467.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,793.92 : 120,912.48 = 75,853.44 : x
  2. Step 2: Convert to fraction form
    87,793.92/120,912.48 = 75,853.44/x
  3. Step 3: Cross multiply
    87,793.92x = 120,912.48 × 75,853.44
  4. Step 4: Simplify right side
    87,793.92x = 9,171,627,546.93
  5. Step 5: Solve for x
    x = 9,171,627,546.93/87,793.92
  6. Step 6: Final answer
    x = 104,467.68

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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.