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Finding the Third Proportional to 141.19 and 233.86

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Solution

The third proportional to 141.19 and 233.86 is: 387.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.19 : 233.86 = 233.86 : x
  2. Step 2: Convert to fraction form
    141.19/233.86 = 233.86/x
  3. Step 3: Cross multiply
    141.19x = 233.86 × 233.86
  4. Step 4: Simplify right side
    141.19x = 54,690.21
  5. Step 5: Solve for x
    x = 54,690.21/141.19
  6. Step 6: Final answer
    x = 387.36

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.