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Finding the Fourth Proportional to 162.91, 244.22 and 111.58

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Solution

The fourth proportional to 162.91, 244.22 and 111.58 is: 167.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.91 : 244.22 = 111.58 : x
  2. Step 2: Convert to fraction form
    162.91/244.22 = 111.58/x
  3. Step 3: Cross multiply
    162.91x = 244.22 × 111.58
  4. Step 4: Simplify right side
    162.91x = 27,248.90
  5. Step 5: Solve for x
    x = 27,248.90/162.91
  6. Step 6: Final answer
    x = 167.26

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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.