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Finding the Third Proportional to 92.25 and 143.19

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Solution

The third proportional to 92.25 and 143.19 is: 222.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    92.25 : 143.19 = 143.19 : x
  2. Step 2: Convert to fraction form
    92.25/143.19 = 143.19/x
  3. Step 3: Cross multiply
    92.25x = 143.19 × 143.19
  4. Step 4: Simplify right side
    92.25x = 20,502.66
  5. Step 5: Solve for x
    x = 20,502.66/92.25
  6. Step 6: Final answer
    x = 222.25

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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.