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Finding the Fourth Proportional to 118.44, 177.44 and 92.67

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Solution

The fourth proportional to 118.44, 177.44 and 92.67 is: 138.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    118.44 : 177.44 = 92.67 : x
  2. Step 2: Convert to fraction form
    118.44/177.44 = 92.67/x
  3. Step 3: Cross multiply
    118.44x = 177.44 × 92.67
  4. Step 4: Simplify right side
    118.44x = 16,442.90
  5. Step 5: Solve for x
    x = 16,442.90/118.44
  6. Step 6: Final answer
    x = 138.83

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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.