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Finding the Fourth Proportional to 167.66, 251.50 and 122.34

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Solution

The fourth proportional to 167.66, 251.50 and 122.34 is: 183.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.66 : 251.50 = 122.34 : x
  2. Step 2: Convert to fraction form
    167.66/251.50 = 122.34/x
  3. Step 3: Cross multiply
    167.66x = 251.50 × 122.34
  4. Step 4: Simplify right side
    167.66x = 30,768.51
  5. Step 5: Solve for x
    x = 30,768.51/167.66
  6. Step 6: Final answer
    x = 183.52

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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.