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Finding the Third Proportional to 76,929.75 and 159,975

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Solution

The third proportional to 76,929.75 and 159,975 is: 332,667.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,929.75 : 159,975 = 159,975 : x
  2. Step 2: Convert to fraction form
    76,929.75/159,975 = 159,975/x
  3. Step 3: Cross multiply
    76,929.75x = 159,975 × 159,975
  4. Step 4: Simplify right side
    76,929.75x = 25,592,000,625
  5. Step 5: Solve for x
    x = 25,592,000,625/76,929.75
  6. Step 6: Final answer
    x = 332,667.15

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.