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Finding the Third Proportional to 121,090 and 166,224

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Solution

The third proportional to 121,090 and 166,224 is: 228,180.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,090 : 166,224 = 166,224 : x
  2. Step 2: Convert to fraction form
    121,090/166,224 = 166,224/x
  3. Step 3: Cross multiply
    121,090x = 166,224 × 166,224
  4. Step 4: Simplify right side
    121,090x = 27,630,418,176
  5. Step 5: Solve for x
    x = 27,630,418,176/121,090
  6. Step 6: Final answer
    x = 228,180.84

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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.