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Finding the Third Proportional to 109,164 and 166,661

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Solution

The third proportional to 109,164 and 166,661 is: 254,441.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,164 : 166,661 = 166,661 : x
  2. Step 2: Convert to fraction form
    109,164/166,661 = 166,661/x
  3. Step 3: Cross multiply
    109,164x = 166,661 × 166,661
  4. Step 4: Simplify right side
    109,164x = 27,775,888,921
  5. Step 5: Solve for x
    x = 27,775,888,921/109,164
  6. Step 6: Final answer
    x = 254,441.84

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.