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Finding the Third Proportional to 100,886,663.25 and 209,825,107.88

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Solution

The third proportional to 100,886,663.25 and 209,825,107.88 is: 436,396,392.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,886,663.25 : 209,825,107.88 = 209,825,107.88 : x
  2. Step 2: Convert to fraction form
    100,886,663.25/209,825,107.88 = 209,825,107.88/x
  3. Step 3: Cross multiply
    100,886,663.25x = 209,825,107.88 × 209,825,107.88
  4. Step 4: Simplify right side
    100,886,663.25x = 44,026,575,894,755,384
  5. Step 5: Solve for x
    x = 44,026,575,894,755,384/100,886,663.25
  6. Step 6: Final answer
    x = 436,396,392.51

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.