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Finding the Third Proportional to 174.38 and 267.19

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Solution

The third proportional to 174.38 and 267.19 is: 409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.38 : 267.19 = 267.19 : x
  2. Step 2: Convert to fraction form
    174.38/267.19 = 267.19/x
  3. Step 3: Cross multiply
    174.38x = 267.19 × 267.19
  4. Step 4: Simplify right side
    174.38x = 71,389.16
  5. Step 5: Solve for x
    x = 71,389.16/174.38
  6. Step 6: Final answer
    x = 409.40

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.