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Finding the Fourth Proportional to 167.25, 230.77 and 93.56

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Solution

The fourth proportional to 167.25, 230.77 and 93.56 is: 129.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.25 : 230.77 = 93.56 : x
  2. Step 2: Convert to fraction form
    167.25/230.77 = 93.56/x
  3. Step 3: Cross multiply
    167.25x = 230.77 × 93.56
  4. Step 4: Simplify right side
    167.25x = 21,590.58
  5. Step 5: Solve for x
    x = 21,590.58/167.25
  6. Step 6: Final answer
    x = 129.09

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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.