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Finding the Fourth Proportional to 297.60, 446.28 and 114.84

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Solution

The fourth proportional to 297.60, 446.28 and 114.84 is: 172.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.60 : 446.28 = 114.84 : x
  2. Step 2: Convert to fraction form
    297.60/446.28 = 114.84/x
  3. Step 3: Cross multiply
    297.60x = 446.28 × 114.84
  4. Step 4: Simplify right side
    297.60x = 51,250.80
  5. Step 5: Solve for x
    x = 51,250.80/297.60
  6. Step 6: Final answer
    x = 172.21

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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.