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Finding the Fourth Proportional to 99,632.66, 149,481.80 and 40,452.44

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Solution

The fourth proportional to 99,632.66, 149,481.80 and 40,452.44 is: 60,691.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,632.66 : 149,481.80 = 40,452.44 : x
  2. Step 2: Convert to fraction form
    99,632.66/149,481.80 = 40,452.44/x
  3. Step 3: Cross multiply
    99,632.66x = 149,481.80 × 40,452.44
  4. Step 4: Simplify right side
    99,632.66x = 6,046,903,545.59
  5. Step 5: Solve for x
    x = 6,046,903,545.59/99,632.66
  6. Step 6: Final answer
    x = 60,691.98

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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.