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Finding the Fourth Proportional to 167.16, 251.01 and 126.03

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Solution

The fourth proportional to 167.16, 251.01 and 126.03 is: 189.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.16 : 251.01 = 126.03 : x
  2. Step 2: Convert to fraction form
    167.16/251.01 = 126.03/x
  3. Step 3: Cross multiply
    167.16x = 251.01 × 126.03
  4. Step 4: Simplify right side
    167.16x = 31,634.79
  5. Step 5: Solve for x
    x = 31,634.79/167.16
  6. Step 6: Final answer
    x = 189.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.