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Finding the Third Proportional to 71,247,702 and 155,613,030

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Solution

The third proportional to 71,247,702 and 155,613,030 is: 339,876,437.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,247,702 : 155,613,030 = 155,613,030 : x
  2. Step 2: Convert to fraction form
    71,247,702/155,613,030 = 155,613,030/x
  3. Step 3: Cross multiply
    71,247,702x = 155,613,030 × 155,613,030
  4. Step 4: Simplify right side
    71,247,702x = 24,215,415,105,780,900
  5. Step 5: Solve for x
    x = 24,215,415,105,780,900/71,247,702
  6. Step 6: Final answer
    x = 339,876,437.08

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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.