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Finding the Third Proportional to 91,621,648 and 197,589,692

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Solution

The third proportional to 91,621,648 and 197,589,692 is: 426,118,578.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,621,648 : 197,589,692 = 197,589,692 : x
  2. Step 2: Convert to fraction form
    91,621,648/197,589,692 = 197,589,692/x
  3. Step 3: Cross multiply
    91,621,648x = 197,589,692 × 197,589,692
  4. Step 4: Simplify right side
    91,621,648x = 39,041,686,384,654,864
  5. Step 5: Solve for x
    x = 39,041,686,384,654,864/91,621,648
  6. Step 6: Final answer
    x = 426,118,578.27

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.