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Finding the Fourth Proportional to 269,745.95, 404,489.83 and 127,472.49

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Solution

The fourth proportional to 269,745.95, 404,489.83 and 127,472.49 is: 191,147.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,745.95 : 404,489.83 = 127,472.49 : x
  2. Step 2: Convert to fraction form
    269,745.95/404,489.83 = 127,472.49/x
  3. Step 3: Cross multiply
    269,745.95x = 404,489.83 × 127,472.49
  4. Step 4: Simplify right side
    269,745.95x = 51,561,325,809.78
  5. Step 5: Solve for x
    x = 51,561,325,809.78/269,745.95
  6. Step 6: Final answer
    x = 191,147.73

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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.