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Finding the Fourth Proportional to 79,627.70, 109,891.13 and 43,825.61

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Solution

The fourth proportional to 79,627.70, 109,891.13 and 43,825.61 is: 60,482.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,627.70 : 109,891.13 = 43,825.61 : x
  2. Step 2: Convert to fraction form
    79,627.70/109,891.13 = 43,825.61/x
  3. Step 3: Cross multiply
    79,627.70x = 109,891.13 × 43,825.61
  4. Step 4: Simplify right side
    79,627.70x = 4,816,045,861.44
  5. Step 5: Solve for x
    x = 4,816,045,861.44/79,627.70
  6. Step 6: Final answer
    x = 60,482.04

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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.