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Finding the Third Proportional to 87,421,653 and 190,664,586

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Solution

The third proportional to 87,421,653 and 190,664,586 is: 415,835,014.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,421,653 : 190,664,586 = 190,664,586 : x
  2. Step 2: Convert to fraction form
    87,421,653/190,664,586 = 190,664,586/x
  3. Step 3: Cross multiply
    87,421,653x = 190,664,586 × 190,664,586
  4. Step 4: Simplify right side
    87,421,653x = 36,352,984,354,551,392
  5. Step 5: Solve for x
    x = 36,352,984,354,551,392/87,421,653
  6. Step 6: Final answer
    x = 415,835,014.63

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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.