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Finding the Third Proportional to 71,247,690 and 155,613,006

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Solution

The third proportional to 71,247,690 and 155,613,006 is: 339,876,389.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,247,690 : 155,613,006 = 155,613,006 : x
  2. Step 2: Convert to fraction form
    71,247,690/155,613,006 = 155,613,006/x
  3. Step 3: Cross multiply
    71,247,690x = 155,613,006 × 155,613,006
  4. Step 4: Simplify right side
    71,247,690x = 24,215,407,636,356,036
  5. Step 5: Solve for x
    x = 24,215,407,636,356,036/71,247,690
  6. Step 6: Final answer
    x = 339,876,389.49

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.