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Finding the Third Proportional to 75,208 and 165,290

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Solution

The third proportional to 75,208 and 165,290 is: 363,269.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,208 : 165,290 = 165,290 : x
  2. Step 2: Convert to fraction form
    75,208/165,290 = 165,290/x
  3. Step 3: Cross multiply
    75,208x = 165,290 × 165,290
  4. Step 4: Simplify right side
    75,208x = 27,320,784,100
  5. Step 5: Solve for x
    x = 27,320,784,100/75,208
  6. Step 6: Final answer
    x = 363,269.65

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.