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Finding the Fourth Proportional to 80,791.65, 121,207.11 and 24,632.76

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Solution

The fourth proportional to 80,791.65, 121,207.11 and 24,632.76 is: 36,955.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,791.65 : 121,207.11 = 24,632.76 : x
  2. Step 2: Convert to fraction form
    80,791.65/121,207.11 = 24,632.76/x
  3. Step 3: Cross multiply
    80,791.65x = 121,207.11 × 24,632.76
  4. Step 4: Simplify right side
    80,791.65x = 2,985,665,400.57
  5. Step 5: Solve for x
    x = 2,985,665,400.57/80,791.65
  6. Step 6: Final answer
    x = 36,955.12

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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.