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Finding the Fourth Proportional to 167.77, 231.59 and 116.09

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Solution

The fourth proportional to 167.77, 231.59 and 116.09 is: 160.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.77 : 231.59 = 116.09 : x
  2. Step 2: Convert to fraction form
    167.77/231.59 = 116.09/x
  3. Step 3: Cross multiply
    167.77x = 231.59 × 116.09
  4. Step 4: Simplify right side
    167.77x = 26,884.70
  5. Step 5: Solve for x
    x = 26,884.70/167.77
  6. Step 6: Final answer
    x = 160.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.