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Finding the Fourth Proportional to 80,372.56, 110,924.40 and 52,800.80

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Solution

The fourth proportional to 80,372.56, 110,924.40 and 52,800.80 is: 72,871.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,372.56 : 110,924.40 = 52,800.80 : x
  2. Step 2: Convert to fraction form
    80,372.56/110,924.40 = 52,800.80/x
  3. Step 3: Cross multiply
    80,372.56x = 110,924.40 × 52,800.80
  4. Step 4: Simplify right side
    80,372.56x = 5,856,897,059.52
  5. Step 5: Solve for x
    x = 5,856,897,059.52/80,372.56
  6. Step 6: Final answer
    x = 72,871.85

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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.