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Finding the Fourth Proportional to 79,769.94, 110,081.10 and 43,471.71

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Solution

The fourth proportional to 79,769.94, 110,081.10 and 43,471.71 is: 59,990.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,769.94 : 110,081.10 = 43,471.71 : x
  2. Step 2: Convert to fraction form
    79,769.94/110,081.10 = 43,471.71/x
  3. Step 3: Cross multiply
    79,769.94x = 110,081.10 × 43,471.71
  4. Step 4: Simplify right side
    79,769.94x = 4,785,413,655.68
  5. Step 5: Solve for x
    x = 4,785,413,655.68/79,769.94
  6. Step 6: Final answer
    x = 59,990.19

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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.