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Finding the Fourth Proportional to 112.83, 167.97 and 112.22

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Solution

The fourth proportional to 112.83, 167.97 and 112.22 is: 167.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    112.83 : 167.97 = 112.22 : x
  2. Step 2: Convert to fraction form
    112.83/167.97 = 112.22/x
  3. Step 3: Cross multiply
    112.83x = 167.97 × 112.22
  4. Step 4: Simplify right side
    112.83x = 18,849.03
  5. Step 5: Solve for x
    x = 18,849.03/112.83
  6. Step 6: Final answer
    x = 167.06

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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.