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Finding the Third Proportional to 79,210,738 and 126,039,859

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Solution

The third proportional to 79,210,738 and 126,039,859 is: 200,554,198.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,210,738 : 126,039,859 = 126,039,859 : x
  2. Step 2: Convert to fraction form
    79,210,738/126,039,859 = 126,039,859/x
  3. Step 3: Cross multiply
    79,210,738x = 126,039,859 × 126,039,859
  4. Step 4: Simplify right side
    79,210,738x = 15,886,046,056,739,880
  5. Step 5: Solve for x
    x = 15,886,046,056,739,880/79,210,738
  6. Step 6: Final answer
    x = 200,554,198.31

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.