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Finding the Third Proportional to 79,240.78 and 162,126.56

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Solution

The third proportional to 79,240.78 and 162,126.56 is: 331,710.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,240.78 : 162,126.56 = 162,126.56 : x
  2. Step 2: Convert to fraction form
    79,240.78/162,126.56 = 162,126.56/x
  3. Step 3: Cross multiply
    79,240.78x = 162,126.56 × 162,126.56
  4. Step 4: Simplify right side
    79,240.78x = 26,285,022,268.07
  5. Step 5: Solve for x
    x = 26,285,022,268.07/79,240.78
  6. Step 6: Final answer
    x = 331,710.79

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.