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Finding the Third Proportional to 85,450.50 and 186,991.50

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Solution

The third proportional to 85,450.50 and 186,991.50 is: 409,193.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,450.50 : 186,991.50 = 186,991.50 : x
  2. Step 2: Convert to fraction form
    85,450.50/186,991.50 = 186,991.50/x
  3. Step 3: Cross multiply
    85,450.50x = 186,991.50 × 186,991.50
  4. Step 4: Simplify right side
    85,450.50x = 34,965,821,072.25
  5. Step 5: Solve for x
    x = 34,965,821,072.25/85,450.50
  6. Step 6: Final answer
    x = 409,193.87

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.