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Finding the Fourth Proportional to 229.29, 316.70 and 167.02

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Solution

The fourth proportional to 229.29, 316.70 and 167.02 is: 230.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    229.29 : 316.70 = 167.02 : x
  2. Step 2: Convert to fraction form
    229.29/316.70 = 167.02/x
  3. Step 3: Cross multiply
    229.29x = 316.70 × 167.02
  4. Step 4: Simplify right side
    229.29x = 52,894.40
  5. Step 5: Solve for x
    x = 52,894.40/229.29
  6. Step 6: Final answer
    x = 230.69

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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.