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Finding the Fourth Proportional to 80,958.35, 111,717.25 and 44,657.61

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Solution

The fourth proportional to 80,958.35, 111,717.25 and 44,657.61 is: 61,624.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,958.35 : 111,717.25 = 44,657.61 : x
  2. Step 2: Convert to fraction form
    80,958.35/111,717.25 = 44,657.61/x
  3. Step 3: Cross multiply
    80,958.35x = 111,717.25 × 44,657.61
  4. Step 4: Simplify right side
    80,958.35x = 4,989,025,380.77
  5. Step 5: Solve for x
    x = 4,989,025,380.77/80,958.35
  6. Step 6: Final answer
    x = 61,624.59

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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.