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Finding the Third Proportional to 79,342,074 and 122,603,733

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Solution

The third proportional to 79,342,074 and 122,603,733 is: 189,454,025.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,342,074 : 122,603,733 = 122,603,733 : x
  2. Step 2: Convert to fraction form
    79,342,074/122,603,733 = 122,603,733/x
  3. Step 3: Cross multiply
    79,342,074x = 122,603,733 × 122,603,733
  4. Step 4: Simplify right side
    79,342,074x = 15,031,675,345,535,288
  5. Step 5: Solve for x
    x = 15,031,675,345,535,288/79,342,074
  6. Step 6: Final answer
    x = 189,454,025.94

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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.