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Finding the Third Proportional to 111,788.50 and 166,163.75

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Solution

The third proportional to 111,788.50 and 166,163.75 is: 246,987.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,788.50 : 166,163.75 = 166,163.75 : x
  2. Step 2: Convert to fraction form
    111,788.50/166,163.75 = 166,163.75/x
  3. Step 3: Cross multiply
    111,788.50x = 166,163.75 × 166,163.75
  4. Step 4: Simplify right side
    111,788.50x = 27,610,391,814.06
  5. Step 5: Solve for x
    x = 27,610,391,814.06/111,788.50
  6. Step 6: Final answer
    x = 246,987.77

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.