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Finding the Third Proportional to 87,890.50 and 190,361

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Solution

The third proportional to 87,890.50 and 190,361 is: 412,300.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,890.50 : 190,361 = 190,361 : x
  2. Step 2: Convert to fraction form
    87,890.50/190,361 = 190,361/x
  3. Step 3: Cross multiply
    87,890.50x = 190,361 × 190,361
  4. Step 4: Simplify right side
    87,890.50x = 36,237,310,321
  5. Step 5: Solve for x
    x = 36,237,310,321/87,890.50
  6. Step 6: Final answer
    x = 412,300.65

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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.