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Finding the Third Proportional to 87,621.75 and 190,005.75

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Solution

The third proportional to 87,621.75 and 190,005.75 is: 412,023.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,621.75 : 190,005.75 = 190,005.75 : x
  2. Step 2: Convert to fraction form
    87,621.75/190,005.75 = 190,005.75/x
  3. Step 3: Cross multiply
    87,621.75x = 190,005.75 × 190,005.75
  4. Step 4: Simplify right side
    87,621.75x = 36,102,185,033.06
  5. Step 5: Solve for x
    x = 36,102,185,033.06/87,621.75
  6. Step 6: Final answer
    x = 412,023.10

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.