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Finding the Fourth Proportional to 79,776.68, 119,687.20 and 34,801.97

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Solution

The fourth proportional to 79,776.68, 119,687.20 and 34,801.97 is: 52,212.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,776.68 : 119,687.20 = 34,801.97 : x
  2. Step 2: Convert to fraction form
    79,776.68/119,687.20 = 34,801.97/x
  3. Step 3: Cross multiply
    79,776.68x = 119,687.20 × 34,801.97
  4. Step 4: Simplify right side
    79,776.68x = 4,165,350,169.77
  5. Step 5: Solve for x
    x = 4,165,350,169.77/79,776.68
  6. Step 6: Final answer
    x = 52,212.63

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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.