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Finding the Third Proportional to 84,694.50 and 178,785

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Solution

The third proportional to 84,694.50 and 178,785 is: 377,404.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,694.50 : 178,785 = 178,785 : x
  2. Step 2: Convert to fraction form
    84,694.50/178,785 = 178,785/x
  3. Step 3: Cross multiply
    84,694.50x = 178,785 × 178,785
  4. Step 4: Simplify right side
    84,694.50x = 31,964,076,225
  5. Step 5: Solve for x
    x = 31,964,076,225/84,694.50
  6. Step 6: Final answer
    x = 377,404.39

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.