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Finding the Third Proportional to 63,906,908 and 139,771,219

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Solution

The third proportional to 63,906,908 and 139,771,219 is: 305,694,552.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,906,908 : 139,771,219 = 139,771,219 : x
  2. Step 2: Convert to fraction form
    63,906,908/139,771,219 = 139,771,219/x
  3. Step 3: Cross multiply
    63,906,908x = 139,771,219 × 139,771,219
  4. Step 4: Simplify right side
    63,906,908x = 19,535,993,660,745,960
  5. Step 5: Solve for x
    x = 19,535,993,660,745,960/63,906,908
  6. Step 6: Final answer
    x = 305,694,552.78

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.