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Finding the Third Proportional to 79,340,827 and 122,601,809

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Solution

The third proportional to 79,340,827 and 122,601,809 is: 189,451,057.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,340,827 : 122,601,809 = 122,601,809 : x
  2. Step 2: Convert to fraction form
    79,340,827/122,601,809 = 122,601,809/x
  3. Step 3: Cross multiply
    79,340,827x = 122,601,809 × 122,601,809
  4. Step 4: Simplify right side
    79,340,827x = 15,031,203,570,072,480
  5. Step 5: Solve for x
    x = 15,031,203,570,072,480/79,340,827
  6. Step 6: Final answer
    x = 189,451,057.40

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.