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Finding the Fourth Proportional to 167.46, 230.88 and 115.03

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Solution

The fourth proportional to 167.46, 230.88 and 115.03 is: 158.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.46 : 230.88 = 115.03 : x
  2. Step 2: Convert to fraction form
    167.46/230.88 = 115.03/x
  3. Step 3: Cross multiply
    167.46x = 230.88 × 115.03
  4. Step 4: Simplify right side
    167.46x = 26,558.13
  5. Step 5: Solve for x
    x = 26,558.13/167.46
  6. Step 6: Final answer
    x = 158.59

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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.