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Finding the Third Proportional to 79,342,110 and 122,603,787

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Solution

The third proportional to 79,342,110 and 122,603,787 is: 189,454,106.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,342,110 : 122,603,787 = 122,603,787 : x
  2. Step 2: Convert to fraction form
    79,342,110/122,603,787 = 122,603,787/x
  3. Step 3: Cross multiply
    79,342,110x = 122,603,787 × 122,603,787
  4. Step 4: Simplify right side
    79,342,110x = 15,031,688,586,741,368
  5. Step 5: Solve for x
    x = 15,031,688,586,741,368/79,342,110
  6. Step 6: Final answer
    x = 189,454,106.86

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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.