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Finding the Third Proportional to 80,007.75 and 116,721

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Solution

The third proportional to 80,007.75 and 116,721 is: 170,280.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,007.75 : 116,721 = 116,721 : x
  2. Step 2: Convert to fraction form
    80,007.75/116,721 = 116,721/x
  3. Step 3: Cross multiply
    80,007.75x = 116,721 × 116,721
  4. Step 4: Simplify right side
    80,007.75x = 13,623,791,841
  5. Step 5: Solve for x
    x = 13,623,791,841/80,007.75
  6. Step 6: Final answer
    x = 170,280.90

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.