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Finding the Fourth Proportional to 80,418.91, 110,982.81 and 44,612.86

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Solution

The fourth proportional to 80,418.91, 110,982.81 and 44,612.86 is: 61,568.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,418.91 : 110,982.81 = 44,612.86 : x
  2. Step 2: Convert to fraction form
    80,418.91/110,982.81 = 44,612.86/x
  3. Step 3: Cross multiply
    80,418.91x = 110,982.81 × 44,612.86
  4. Step 4: Simplify right side
    80,418.91x = 4,951,260,564.94
  5. Step 5: Solve for x
    x = 4,951,260,564.94/80,418.91
  6. Step 6: Final answer
    x = 61,568.36

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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.