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Finding the Third Proportional to 144.75 and 165

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Solution

The third proportional to 144.75 and 165 is: 188.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    144.75 : 165 = 165 : x
  2. Step 2: Convert to fraction form
    144.75/165 = 165/x
  3. Step 3: Cross multiply
    144.75x = 165 × 165
  4. Step 4: Simplify right side
    144.75x = 27,225
  5. Step 5: Solve for x
    x = 27,225/144.75
  6. Step 6: Final answer
    x = 188.08

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.