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Finding the Third Proportional to 127,392.75 and 279,024.75

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Solution

The third proportional to 127,392.75 and 279,024.75 is: 611,140.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,392.75 : 279,024.75 = 279,024.75 : x
  2. Step 2: Convert to fraction form
    127,392.75/279,024.75 = 279,024.75/x
  3. Step 3: Cross multiply
    127,392.75x = 279,024.75 × 279,024.75
  4. Step 4: Simplify right side
    127,392.75x = 77,854,811,112.56
  5. Step 5: Solve for x
    x = 77,854,811,112.56/127,392.75
  6. Step 6: Final answer
    x = 611,140.05

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.