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Finding the Third Proportional to 181,136,316 and 397,857,378

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Solution

The third proportional to 181,136,316 and 397,857,378 is: 873,874,972.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,136,316 : 397,857,378 = 397,857,378 : x
  2. Step 2: Convert to fraction form
    181,136,316/397,857,378 = 397,857,378/x
  3. Step 3: Cross multiply
    181,136,316x = 397,857,378 × 397,857,378
  4. Step 4: Simplify right side
    181,136,316x = 158,290,493,229,034,880
  5. Step 5: Solve for x
    x = 158,290,493,229,034,880/181,136,316
  6. Step 6: Final answer
    x = 873,874,972.86

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.