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Finding the Third Proportional to 61,135.50 and 135,393

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Solution

The third proportional to 61,135.50 and 135,393 is: 299,846.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,135.50 : 135,393 = 135,393 : x
  2. Step 2: Convert to fraction form
    61,135.50/135,393 = 135,393/x
  3. Step 3: Cross multiply
    61,135.50x = 135,393 × 135,393
  4. Step 4: Simplify right side
    61,135.50x = 18,331,264,449
  5. Step 5: Solve for x
    x = 18,331,264,449/61,135.50
  6. Step 6: Final answer
    x = 299,846.48

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.