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Finding the Third Proportional to 57,196 and 86,214

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Solution

The third proportional to 57,196 and 86,214 is: 129,954.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,196 : 86,214 = 86,214 : x
  2. Step 2: Convert to fraction form
    57,196/86,214 = 86,214/x
  3. Step 3: Cross multiply
    57,196x = 86,214 × 86,214
  4. Step 4: Simplify right side
    57,196x = 7,432,853,796
  5. Step 5: Solve for x
    x = 7,432,853,796/57,196
  6. Step 6: Final answer
    x = 129,954.08

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.