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Finding the Fourth Proportional to 229.57, 316.92 and 167.47

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Solution

The fourth proportional to 229.57, 316.92 and 167.47 is: 231.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    229.57 : 316.92 = 167.47 : x
  2. Step 2: Convert to fraction form
    229.57/316.92 = 167.47/x
  3. Step 3: Cross multiply
    229.57x = 316.92 × 167.47
  4. Step 4: Simplify right side
    229.57x = 53,074.59
  5. Step 5: Solve for x
    x = 53,074.59/229.57
  6. Step 6: Final answer
    x = 231.19

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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.