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Finding the Third Proportional to 117.13 and 186.16

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Solution

The third proportional to 117.13 and 186.16 is: 295.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.13 : 186.16 = 186.16 : x
  2. Step 2: Convert to fraction form
    117.13/186.16 = 186.16/x
  3. Step 3: Cross multiply
    117.13x = 186.16 × 186.16
  4. Step 4: Simplify right side
    117.13x = 34,654.15
  5. Step 5: Solve for x
    x = 34,654.15/117.13
  6. Step 6: Final answer
    x = 295.87

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.