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Finding the Third Proportional to 122,129,173 and 263,389,682

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Solution

The third proportional to 122,129,173 and 263,389,682 is: 568,038,928.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,129,173 : 263,389,682 = 263,389,682 : x
  2. Step 2: Convert to fraction form
    122,129,173/263,389,682 = 263,389,682/x
  3. Step 3: Cross multiply
    122,129,173x = 263,389,682 × 263,389,682
  4. Step 4: Simplify right side
    122,129,173x = 69,374,124,584,061,120
  5. Step 5: Solve for x
    x = 69,374,124,584,061,120/122,129,173
  6. Step 6: Final answer
    x = 568,038,928.62

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.