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Finding the Fourth Proportional to 168.97, 233.34 and 116.65

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Solution

The fourth proportional to 168.97, 233.34 and 116.65 is: 161.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.97 : 233.34 = 116.65 : x
  2. Step 2: Convert to fraction form
    168.97/233.34 = 116.65/x
  3. Step 3: Cross multiply
    168.97x = 233.34 × 116.65
  4. Step 4: Simplify right side
    168.97x = 27,219.29
  5. Step 5: Solve for x
    x = 27,219.29/168.97
  6. Step 6: Final answer
    x = 161.09

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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.