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Finding the Fourth Proportional to 80,769.93, 121,179.69 and 41,354.73

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Solution

The fourth proportional to 80,769.93, 121,179.69 and 41,354.73 is: 62,044.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,769.93 : 121,179.69 = 41,354.73 : x
  2. Step 2: Convert to fraction form
    80,769.93/121,179.69 = 41,354.73/x
  3. Step 3: Cross multiply
    80,769.93x = 121,179.69 × 41,354.73
  4. Step 4: Simplify right side
    80,769.93x = 5,011,353,361.43
  5. Step 5: Solve for x
    x = 5,011,353,361.43/80,769.93
  6. Step 6: Final answer
    x = 62,044.79

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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.