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Finding the Fourth Proportional to 167.90, 250.59 and 156.97

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Solution

The fourth proportional to 167.90, 250.59 and 156.97 is: 234.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.90 : 250.59 = 156.97 : x
  2. Step 2: Convert to fraction form
    167.90/250.59 = 156.97/x
  3. Step 3: Cross multiply
    167.90x = 250.59 × 156.97
  4. Step 4: Simplify right side
    167.90x = 39,333.86
  5. Step 5: Solve for x
    x = 39,333.86/167.90
  6. Step 6: Final answer
    x = 234.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.