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Finding the Third Proportional to 49,131 and 77,914.50

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Solution

The third proportional to 49,131 and 77,914.50 is: 123,560.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,131 : 77,914.50 = 77,914.50 : x
  2. Step 2: Convert to fraction form
    49,131/77,914.50 = 77,914.50/x
  3. Step 3: Cross multiply
    49,131x = 77,914.50 × 77,914.50
  4. Step 4: Simplify right side
    49,131x = 6,070,669,310.25
  5. Step 5: Solve for x
    x = 6,070,669,310.25/49,131
  6. Step 6: Final answer
    x = 123,560.87

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.