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Finding the Third Proportional to 90,844.50 and 199,611

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Solution

The third proportional to 90,844.50 and 199,611 is: 438,601.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,844.50 : 199,611 = 199,611 : x
  2. Step 2: Convert to fraction form
    90,844.50/199,611 = 199,611/x
  3. Step 3: Cross multiply
    90,844.50x = 199,611 × 199,611
  4. Step 4: Simplify right side
    90,844.50x = 39,844,551,321
  5. Step 5: Solve for x
    x = 39,844,551,321/90,844.50
  6. Step 6: Final answer
    x = 438,601.69

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.