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Finding the Third Proportional to 87,246,991 and 189,034,556

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Solution

The third proportional to 87,246,991 and 189,034,556 is: 409,573,590.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,246,991 : 189,034,556 = 189,034,556 : x
  2. Step 2: Convert to fraction form
    87,246,991/189,034,556 = 189,034,556/x
  3. Step 3: Cross multiply
    87,246,991x = 189,034,556 × 189,034,556
  4. Step 4: Simplify right side
    87,246,991x = 35,734,063,362,117,136
  5. Step 5: Solve for x
    x = 35,734,063,362,117,136/87,246,991
  6. Step 6: Final answer
    x = 409,573,590.48

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.