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Finding the Fourth Proportional to 269.22, 404 and 187.92

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Solution

The fourth proportional to 269.22, 404 and 187.92 is: 282.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.22 : 404 = 187.92 : x
  2. Step 2: Convert to fraction form
    269.22/404 = 187.92/x
  3. Step 3: Cross multiply
    269.22x = 404 × 187.92
  4. Step 4: Simplify right side
    269.22x = 75,919.68
  5. Step 5: Solve for x
    x = 75,919.68/269.22
  6. Step 6: Final answer
    x = 282.00

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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.