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Finding the Fourth Proportional to 80,682, 111,343.89 and 44,384.97

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Solution

The fourth proportional to 80,682, 111,343.89 and 44,384.97 is: 61,252.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,682 : 111,343.89 = 44,384.97 : x
  2. Step 2: Convert to fraction form
    80,682/111,343.89 = 44,384.97/x
  3. Step 3: Cross multiply
    80,682x = 111,343.89 × 44,384.97
  4. Step 4: Simplify right side
    80,682x = 4,941,995,217.33
  5. Step 5: Solve for x
    x = 4,941,995,217.33/80,682
  6. Step 6: Final answer
    x = 61,252.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.