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Finding the Third Proportional to 92.81 and 144.28

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Solution

The third proportional to 92.81 and 144.28 is: 224.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    92.81 : 144.28 = 144.28 : x
  2. Step 2: Convert to fraction form
    92.81/144.28 = 144.28/x
  3. Step 3: Cross multiply
    92.81x = 144.28 × 144.28
  4. Step 4: Simplify right side
    92.81x = 20,817.08
  5. Step 5: Solve for x
    x = 20,817.08/92.81
  6. Step 6: Final answer
    x = 224.29

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.