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Finding the Fourth Proportional to 167.52, 251.27 and 51.96

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Solution

The fourth proportional to 167.52, 251.27 and 51.96 is: 77.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.52 : 251.27 = 51.96 : x
  2. Step 2: Convert to fraction form
    167.52/251.27 = 51.96/x
  3. Step 3: Cross multiply
    167.52x = 251.27 × 51.96
  4. Step 4: Simplify right side
    167.52x = 13,054.47
  5. Step 5: Solve for x
    x = 13,054.47/167.52
  6. Step 6: Final answer
    x = 77.93

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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.