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Finding the Fourth Proportional to 297.85, 446.61 and 124.32

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Solution

The fourth proportional to 297.85, 446.61 and 124.32 is: 186.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.85 : 446.61 = 124.32 : x
  2. Step 2: Convert to fraction form
    297.85/446.61 = 124.32/x
  3. Step 3: Cross multiply
    297.85x = 446.61 × 124.32
  4. Step 4: Simplify right side
    297.85x = 55,522.56
  5. Step 5: Solve for x
    x = 55,522.56/297.85
  6. Step 6: Final answer
    x = 186.41

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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.