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Finding the Fourth Proportional to 120,850.92, 181,248.98 and 45,944.42

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Solution

The fourth proportional to 120,850.92, 181,248.98 and 45,944.42 is: 68,906.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,850.92 : 181,248.98 = 45,944.42 : x
  2. Step 2: Convert to fraction form
    120,850.92/181,248.98 = 45,944.42/x
  3. Step 3: Cross multiply
    120,850.92x = 181,248.98 × 45,944.42
  4. Step 4: Simplify right side
    120,850.92x = 8,327,378,125.72
  5. Step 5: Solve for x
    x = 8,327,378,125.72/120,850.92
  6. Step 6: Final answer
    x = 68,906.20

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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.