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Finding the Fourth Proportional to 73,363.60, 109,753.80 and 63,611.20

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Solution

The fourth proportional to 73,363.60, 109,753.80 and 63,611.20 is: 95,163.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,363.60 : 109,753.80 = 63,611.20 : x
  2. Step 2: Convert to fraction form
    73,363.60/109,753.80 = 63,611.20/x
  3. Step 3: Cross multiply
    73,363.60x = 109,753.80 × 63,611.20
  4. Step 4: Simplify right side
    73,363.60x = 6,981,570,922.56
  5. Step 5: Solve for x
    x = 6,981,570,922.56/73,363.60
  6. Step 6: Final answer
    x = 95,163.96

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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.