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Finding the Fourth Proportional to 221,471.03, 332,233.95 and 79,331.56

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Solution

The fourth proportional to 221,471.03, 332,233.95 and 79,331.56 is: 119,007.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,471.03 : 332,233.95 = 79,331.56 : x
  2. Step 2: Convert to fraction form
    221,471.03/332,233.95 = 79,331.56/x
  3. Step 3: Cross multiply
    221,471.03x = 332,233.95 × 79,331.56
  4. Step 4: Simplify right side
    221,471.03x = 26,356,635,877.29
  5. Step 5: Solve for x
    x = 26,356,635,877.29/221,471.03
  6. Step 6: Final answer
    x = 119,007.15

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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.