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Finding the Fourth Proportional to 297.88, 446.86 and 92.48

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Solution

The fourth proportional to 297.88, 446.86 and 92.48 is: 138.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.88 : 446.86 = 92.48 : x
  2. Step 2: Convert to fraction form
    297.88/446.86 = 92.48/x
  3. Step 3: Cross multiply
    297.88x = 446.86 × 92.48
  4. Step 4: Simplify right side
    297.88x = 41,325.61
  5. Step 5: Solve for x
    x = 41,325.61/297.88
  6. Step 6: Final answer
    x = 138.73

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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.