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Finding the Fourth Proportional to 80,472.97, 111,051.16 and 44,663.41

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Solution

The fourth proportional to 80,472.97, 111,051.16 and 44,663.41 is: 61,634.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,472.97 : 111,051.16 = 44,663.41 : x
  2. Step 2: Convert to fraction form
    80,472.97/111,051.16 = 44,663.41/x
  3. Step 3: Cross multiply
    80,472.97x = 111,051.16 × 44,663.41
  4. Step 4: Simplify right side
    80,472.97x = 4,959,923,490.06
  5. Step 5: Solve for x
    x = 4,959,923,490.06/80,472.97
  6. Step 6: Final answer
    x = 61,634.65

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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.