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Finding the Third Proportional to 87,718.50 and 190,197

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Solution

The third proportional to 87,718.50 and 190,197 is: 412,397.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,718.50 : 190,197 = 190,197 : x
  2. Step 2: Convert to fraction form
    87,718.50/190,197 = 190,197/x
  3. Step 3: Cross multiply
    87,718.50x = 190,197 × 190,197
  4. Step 4: Simplify right side
    87,718.50x = 36,174,898,809
  5. Step 5: Solve for x
    x = 36,174,898,809/87,718.50
  6. Step 6: Final answer
    x = 412,397.60

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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.