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Finding the Third Proportional to 82,453.50 and 177,939

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Solution

The third proportional to 82,453.50 and 177,939 is: 384,001.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,453.50 : 177,939 = 177,939 : x
  2. Step 2: Convert to fraction form
    82,453.50/177,939 = 177,939/x
  3. Step 3: Cross multiply
    82,453.50x = 177,939 × 177,939
  4. Step 4: Simplify right side
    82,453.50x = 31,662,287,721
  5. Step 5: Solve for x
    x = 31,662,287,721/82,453.50
  6. Step 6: Final answer
    x = 384,001.74

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.