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Finding the Fourth Proportional to 297.62, 446.44 and 92.18

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Solution

The fourth proportional to 297.62, 446.44 and 92.18 is: 138.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.62 : 446.44 = 92.18 : x
  2. Step 2: Convert to fraction form
    297.62/446.44 = 92.18/x
  3. Step 3: Cross multiply
    297.62x = 446.44 × 92.18
  4. Step 4: Simplify right side
    297.62x = 41,153.72
  5. Step 5: Solve for x
    x = 41,153.72/297.62
  6. Step 6: Final answer
    x = 138.28

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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.