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Finding the Third Proportional to 57,943.50 and 122,115

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Solution

The third proportional to 57,943.50 and 122,115 is: 257,355.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,943.50 : 122,115 = 122,115 : x
  2. Step 2: Convert to fraction form
    57,943.50/122,115 = 122,115/x
  3. Step 3: Cross multiply
    57,943.50x = 122,115 × 122,115
  4. Step 4: Simplify right side
    57,943.50x = 14,912,073,225
  5. Step 5: Solve for x
    x = 14,912,073,225/57,943.50
  6. Step 6: Final answer
    x = 257,355.41

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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.