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Finding the Third Proportional to 82,788.75 and 131,159.25

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Solution

The third proportional to 82,788.75 and 131,159.25 is: 207,790.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,788.75 : 131,159.25 = 131,159.25 : x
  2. Step 2: Convert to fraction form
    82,788.75/131,159.25 = 131,159.25/x
  3. Step 3: Cross multiply
    82,788.75x = 131,159.25 × 131,159.25
  4. Step 4: Simplify right side
    82,788.75x = 17,202,748,860.56
  5. Step 5: Solve for x
    x = 17,202,748,860.56/82,788.75
  6. Step 6: Final answer
    x = 207,790.90

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.