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Finding the Fourth Proportional to 79,609.93, 109,861.69 and 43,799.17

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Solution

The fourth proportional to 79,609.93, 109,861.69 and 43,799.17 is: 60,442.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,609.93 : 109,861.69 = 43,799.17 : x
  2. Step 2: Convert to fraction form
    79,609.93/109,861.69 = 43,799.17/x
  3. Step 3: Cross multiply
    79,609.93x = 109,861.69 × 43,799.17
  4. Step 4: Simplify right side
    79,609.93x = 4,811,850,836.80
  5. Step 5: Solve for x
    x = 4,811,850,836.80/79,609.93
  6. Step 6: Final answer
    x = 60,442.85

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1.5x scale

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.