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Finding the Fourth Proportional to 120,468.48, 180,600.85 and 75,997.45

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Solution

The fourth proportional to 120,468.48, 180,600.85 and 75,997.45 is: 113,931.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,468.48 : 180,600.85 = 75,997.45 : x
  2. Step 2: Convert to fraction form
    120,468.48/180,600.85 = 75,997.45/x
  3. Step 3: Cross multiply
    120,468.48x = 180,600.85 × 75,997.45
  4. Step 4: Simplify right side
    120,468.48x = 13,725,204,067.83
  5. Step 5: Solve for x
    x = 13,725,204,067.83/120,468.48
  6. Step 6: Final answer
    x = 113,931.91

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1.5x scale

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.