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Finding the Fourth Proportional to 167.46, 231.10 and 93.76

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Solution

The fourth proportional to 167.46, 231.10 and 93.76 is: 129.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.46 : 231.10 = 93.76 : x
  2. Step 2: Convert to fraction form
    167.46/231.10 = 93.76/x
  3. Step 3: Cross multiply
    167.46x = 231.10 × 93.76
  4. Step 4: Simplify right side
    167.46x = 21,667.94
  5. Step 5: Solve for x
    x = 21,667.94/167.46
  6. Step 6: Final answer
    x = 129.39

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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.