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Finding the Third Proportional to 77,755.50 and 166,566

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Solution

The third proportional to 77,755.50 and 166,566 is: 356,813.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,755.50 : 166,566 = 166,566 : x
  2. Step 2: Convert to fraction form
    77,755.50/166,566 = 166,566/x
  3. Step 3: Cross multiply
    77,755.50x = 166,566 × 166,566
  4. Step 4: Simplify right side
    77,755.50x = 27,744,232,356
  5. Step 5: Solve for x
    x = 27,744,232,356/77,755.50
  6. Step 6: Final answer
    x = 356,813.76

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.