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Finding the Third Proportional to 79,894,163.25 and 171,922,891.50

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Solution

The third proportional to 79,894,163.25 and 171,922,891.50 is: 369,957,947.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,894,163.25 : 171,922,891.50 = 171,922,891.50 : x
  2. Step 2: Convert to fraction form
    79,894,163.25/171,922,891.50 = 171,922,891.50/x
  3. Step 3: Cross multiply
    79,894,163.25x = 171,922,891.50 × 171,922,891.50
  4. Step 4: Simplify right side
    79,894,163.25x = 29,557,480,621,720,772
  5. Step 5: Solve for x
    x = 29,557,480,621,720,772/79,894,163.25
  6. Step 6: Final answer
    x = 369,957,947.11

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.