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Finding the Third Proportional to 117.22 and 181.97

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Solution

The third proportional to 117.22 and 181.97 is: 282.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.22 : 181.97 = 181.97 : x
  2. Step 2: Convert to fraction form
    117.22/181.97 = 181.97/x
  3. Step 3: Cross multiply
    117.22x = 181.97 × 181.97
  4. Step 4: Simplify right side
    117.22x = 33,112.63
  5. Step 5: Solve for x
    x = 33,112.63/117.22
  6. Step 6: Final answer
    x = 282.49

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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.