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Finding the Third Proportional to 76,538.25 and 166,212

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Solution

The third proportional to 76,538.25 and 166,212 is: 360,949.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,538.25 : 166,212 = 166,212 : x
  2. Step 2: Convert to fraction form
    76,538.25/166,212 = 166,212/x
  3. Step 3: Cross multiply
    76,538.25x = 166,212 × 166,212
  4. Step 4: Simplify right side
    76,538.25x = 27,626,428,944
  5. Step 5: Solve for x
    x = 27,626,428,944/76,538.25
  6. Step 6: Final answer
    x = 360,949.32

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.