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Finding the Fourth Proportional to 167.89, 231.72 and 94.24

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Solution

The fourth proportional to 167.89, 231.72 and 94.24 is: 130.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.89 : 231.72 = 94.24 : x
  2. Step 2: Convert to fraction form
    167.89/231.72 = 94.24/x
  3. Step 3: Cross multiply
    167.89x = 231.72 × 94.24
  4. Step 4: Simplify right side
    167.89x = 21,837.29
  5. Step 5: Solve for x
    x = 21,837.29/167.89
  6. Step 6: Final answer
    x = 130.07

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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.