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Finding the Third Proportional to 121,879,206 and 263,637,696

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Solution

The third proportional to 121,879,206 and 263,637,696 is: 570,276,399.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,879,206 : 263,637,696 = 263,637,696 : x
  2. Step 2: Convert to fraction form
    121,879,206/263,637,696 = 263,637,696/x
  3. Step 3: Cross multiply
    121,879,206x = 263,637,696 × 263,637,696
  4. Step 4: Simplify right side
    121,879,206x = 69,504,834,752,188,416
  5. Step 5: Solve for x
    x = 69,504,834,752,188,416/121,879,206
  6. Step 6: Final answer
    x = 570,276,399.34

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.