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Finding the Third Proportional to 121,091 and 166,225

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Solution

The third proportional to 121,091 and 166,225 is: 228,181.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,091 : 166,225 = 166,225 : x
  2. Step 2: Convert to fraction form
    121,091/166,225 = 166,225/x
  3. Step 3: Cross multiply
    121,091x = 166,225 × 166,225
  4. Step 4: Simplify right side
    121,091x = 27,630,750,625
  5. Step 5: Solve for x
    x = 27,630,750,625/121,091
  6. Step 6: Final answer
    x = 228,181.70

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.