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Finding the Fourth Proportional to 297.92, 446.84 and 92.48

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Solution

The fourth proportional to 297.92, 446.84 and 92.48 is: 138.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.92 : 446.84 = 92.48 : x
  2. Step 2: Convert to fraction form
    297.92/446.84 = 92.48/x
  3. Step 3: Cross multiply
    297.92x = 446.84 × 92.48
  4. Step 4: Simplify right side
    297.92x = 41,321.07
  5. Step 5: Solve for x
    x = 41,321.07/297.92
  6. Step 6: Final answer
    x = 138.70

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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.