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Finding the Fourth Proportional to 79,471.80, 119,133.59 and 26,844.48

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Solution

The fourth proportional to 79,471.80, 119,133.59 and 26,844.48 is: 40,241.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,471.80 : 119,133.59 = 26,844.48 : x
  2. Step 2: Convert to fraction form
    79,471.80/119,133.59 = 26,844.48/x
  3. Step 3: Cross multiply
    79,471.80x = 119,133.59 × 26,844.48
  4. Step 4: Simplify right side
    79,471.80x = 3,198,079,139.86
  5. Step 5: Solve for x
    x = 3,198,079,139.86/79,471.80
  6. Step 6: Final answer
    x = 40,241.68

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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.