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Finding the Third Proportional to 121,088.25 and 166,221

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Solution

The third proportional to 121,088.25 and 166,221 is: 228,175.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,088.25 : 166,221 = 166,221 : x
  2. Step 2: Convert to fraction form
    121,088.25/166,221 = 166,221/x
  3. Step 3: Cross multiply
    121,088.25x = 166,221 × 166,221
  4. Step 4: Simplify right side
    121,088.25x = 27,629,420,841
  5. Step 5: Solve for x
    x = 27,629,420,841/121,088.25
  6. Step 6: Final answer
    x = 228,175.90

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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.