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Finding the Fourth Proportional to 269.52, 371.92 and 166

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Solution

The fourth proportional to 269.52, 371.92 and 166 is: 229.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.52 : 371.92 = 166 : x
  2. Step 2: Convert to fraction form
    269.52/371.92 = 166/x
  3. Step 3: Cross multiply
    269.52x = 371.92 × 166
  4. Step 4: Simplify right side
    269.52x = 61,738.72
  5. Step 5: Solve for x
    x = 61,738.72/269.52
  6. Step 6: Final answer
    x = 229.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.