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Finding the Third Proportional to 139,846,968 and 219,378,627

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Solution

The third proportional to 139,846,968 and 219,378,627 is: 344,140,331.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,846,968 : 219,378,627 = 219,378,627 : x
  2. Step 2: Convert to fraction form
    139,846,968/219,378,627 = 219,378,627/x
  3. Step 3: Cross multiply
    139,846,968x = 219,378,627 × 219,378,627
  4. Step 4: Simplify right side
    139,846,968x = 48,126,981,984,405,128
  5. Step 5: Solve for x
    x = 48,126,981,984,405,128/139,846,968
  6. Step 6: Final answer
    x = 344,140,331.91

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.