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Finding the Third Proportional to 69,469.13 and 107,635.69

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Solution

The third proportional to 69,469.13 and 107,635.69 is: 166,771.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,469.13 : 107,635.69 = 107,635.69 : x
  2. Step 2: Convert to fraction form
    69,469.13/107,635.69 = 107,635.69/x
  3. Step 3: Cross multiply
    69,469.13x = 107,635.69 × 107,635.69
  4. Step 4: Simplify right side
    69,469.13x = 11,585,441,223.60
  5. Step 5: Solve for x
    x = 11,585,441,223.60/69,469.13
  6. Step 6: Final answer
    x = 166,771.08

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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.