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Finding the Third Proportional to 113.63 and 165

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Solution

The third proportional to 113.63 and 165 is: 239.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113.63 : 165 = 165 : x
  2. Step 2: Convert to fraction form
    113.63/165 = 165/x
  3. Step 3: Cross multiply
    113.63x = 165 × 165
  4. Step 4: Simplify right side
    113.63x = 27,225
  5. Step 5: Solve for x
    x = 27,225/113.63
  6. Step 6: Final answer
    x = 239.60

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.