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Finding the Fourth Proportional to 276,910.72, 415,227.67 and 127,023.19

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Solution

The fourth proportional to 276,910.72, 415,227.67 and 127,023.19 is: 190,471.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,910.72 : 415,227.67 = 127,023.19 : x
  2. Step 2: Convert to fraction form
    276,910.72/415,227.67 = 127,023.19/x
  3. Step 3: Cross multiply
    276,910.72x = 415,227.67 × 127,023.19
  4. Step 4: Simplify right side
    276,910.72x = 52,743,541,864.04
  5. Step 5: Solve for x
    x = 52,743,541,864.04/276,910.72
  6. Step 6: Final answer
    x = 190,471.29

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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.