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Finding the Fourth Proportional to 167.61, 250.78 and 116.35

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Solution

The fourth proportional to 167.61, 250.78 and 116.35 is: 174.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.61 : 250.78 = 116.35 : x
  2. Step 2: Convert to fraction form
    167.61/250.78 = 116.35/x
  3. Step 3: Cross multiply
    167.61x = 250.78 × 116.35
  4. Step 4: Simplify right side
    167.61x = 29,177.34
  5. Step 5: Solve for x
    x = 29,177.34/167.61
  6. Step 6: Final answer
    x = 174.08

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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.