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Finding the Fourth Proportional to 104,065.65, 156,105.45 and 36,589.61

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Solution

The fourth proportional to 104,065.65, 156,105.45 and 36,589.61 is: 54,886.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,065.65 : 156,105.45 = 36,589.61 : x
  2. Step 2: Convert to fraction form
    104,065.65/156,105.45 = 36,589.61/x
  3. Step 3: Cross multiply
    104,065.65x = 156,105.45 × 36,589.61
  4. Step 4: Simplify right side
    104,065.65x = 5,711,836,753.85
  5. Step 5: Solve for x
    x = 5,711,836,753.85/104,065.65
  6. Step 6: Final answer
    x = 54,886.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.