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Finding the Fourth Proportional to 80,956.35, 111,714.49 and 44,655.61

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Solution

The fourth proportional to 80,956.35, 111,714.49 and 44,655.61 is: 61,621.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,956.35 : 111,714.49 = 44,655.61 : x
  2. Step 2: Convert to fraction form
    80,956.35/111,714.49 = 44,655.61/x
  3. Step 3: Cross multiply
    80,956.35x = 111,714.49 × 44,655.61
  4. Step 4: Simplify right side
    80,956.35x = 4,988,678,305.86
  5. Step 5: Solve for x
    x = 4,988,678,305.86/80,956.35
  6. Step 6: Final answer
    x = 61,621.83

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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.