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Finding the Fourth Proportional to 167.36, 251 and 156

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Solution

The fourth proportional to 167.36, 251 and 156 is: 233.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.36 : 251 = 156 : x
  2. Step 2: Convert to fraction form
    167.36/251 = 156/x
  3. Step 3: Cross multiply
    167.36x = 251 × 156
  4. Step 4: Simplify right side
    167.36x = 39,156
  5. Step 5: Solve for x
    x = 39,156/167.36
  6. Step 6: Final answer
    x = 233.96

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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.