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Finding the Fourth Proportional to 297.57, 446.44 and 115.02

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Solution

The fourth proportional to 297.57, 446.44 and 115.02 is: 172.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.57 : 446.44 = 115.02 : x
  2. Step 2: Convert to fraction form
    297.57/446.44 = 115.02/x
  3. Step 3: Cross multiply
    297.57x = 446.44 × 115.02
  4. Step 4: Simplify right side
    297.57x = 51,349.53
  5. Step 5: Solve for x
    x = 51,349.53/297.57
  6. Step 6: Final answer
    x = 172.56

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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.