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Finding the Fourth Proportional to 79,769.92, 110,082.68 and 43,471.64

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Solution

The fourth proportional to 79,769.92, 110,082.68 and 43,471.64 is: 59,990.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,769.92 : 110,082.68 = 43,471.64 : x
  2. Step 2: Convert to fraction form
    79,769.92/110,082.68 = 43,471.64/x
  3. Step 3: Cross multiply
    79,769.92x = 110,082.68 × 43,471.64
  4. Step 4: Simplify right side
    79,769.92x = 4,785,474,635.20
  5. Step 5: Solve for x
    x = 4,785,474,635.20/79,769.92
  6. Step 6: Final answer
    x = 59,990.97

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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.