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Finding the Fourth Proportional to 269,758.74, 404,719.11 and 127,712.28

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Solution

The fourth proportional to 269,758.74, 404,719.11 and 127,712.28 is: 191,606.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,758.74 : 404,719.11 = 127,712.28 : x
  2. Step 2: Convert to fraction form
    269,758.74/404,719.11 = 127,712.28/x
  3. Step 3: Cross multiply
    269,758.74x = 404,719.11 × 127,712.28
  4. Step 4: Simplify right side
    269,758.74x = 51,687,600,297.67
  5. Step 5: Solve for x
    x = 51,687,600,297.67/269,758.74
  6. Step 6: Final answer
    x = 191,606.77

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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.