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Finding the Fourth Proportional to 297.68, 446.46 and 133.14

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Solution

The fourth proportional to 297.68, 446.46 and 133.14 is: 199.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.68 : 446.46 = 133.14 : x
  2. Step 2: Convert to fraction form
    297.68/446.46 = 133.14/x
  3. Step 3: Cross multiply
    297.68x = 446.46 × 133.14
  4. Step 4: Simplify right side
    297.68x = 59,441.68
  5. Step 5: Solve for x
    x = 59,441.68/297.68
  6. Step 6: Final answer
    x = 199.68

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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.