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Finding the Third Proportional to 87,635,011 and 189,812,455

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Solution

The third proportional to 87,635,011 and 189,812,455 is: 411,122,993.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,635,011 : 189,812,455 = 189,812,455 : x
  2. Step 2: Convert to fraction form
    87,635,011/189,812,455 = 189,812,455/x
  3. Step 3: Cross multiply
    87,635,011x = 189,812,455 × 189,812,455
  4. Step 4: Simplify right side
    87,635,011x = 36,028,768,073,127,024
  5. Step 5: Solve for x
    x = 36,028,768,073,127,024/87,635,011
  6. Step 6: Final answer
    x = 411,122,993.68

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.