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Finding the Third Proportional to 99,038,322 and 217,208,493

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Solution

The third proportional to 99,038,322 and 217,208,493 is: 476,376,502.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,038,322 : 217,208,493 = 217,208,493 : x
  2. Step 2: Convert to fraction form
    99,038,322/217,208,493 = 217,208,493/x
  3. Step 3: Cross multiply
    99,038,322x = 217,208,493 × 217,208,493
  4. Step 4: Simplify right side
    99,038,322x = 47,179,529,431,331,048
  5. Step 5: Solve for x
    x = 47,179,529,431,331,048/99,038,322
  6. Step 6: Final answer
    x = 476,376,502.33

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.