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Finding the Fourth Proportional to 234.97, 352.48 and 231.26

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Solution

The fourth proportional to 234.97, 352.48 and 231.26 is: 346.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.97 : 352.48 = 231.26 : x
  2. Step 2: Convert to fraction form
    234.97/352.48 = 231.26/x
  3. Step 3: Cross multiply
    234.97x = 352.48 × 231.26
  4. Step 4: Simplify right side
    234.97x = 81,514.52
  5. Step 5: Solve for x
    x = 81,514.52/234.97
  6. Step 6: Final answer
    x = 346.91

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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.