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Finding the Third Proportional to 103,018,591 and 218,318,078

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Solution

The third proportional to 103,018,591 and 218,318,078 is: 462,661,959.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,018,591 : 218,318,078 = 218,318,078 : x
  2. Step 2: Convert to fraction form
    103,018,591/218,318,078 = 218,318,078/x
  3. Step 3: Cross multiply
    103,018,591x = 218,318,078 × 218,318,078
  4. Step 4: Simplify right side
    103,018,591x = 47,662,783,181,614,080
  5. Step 5: Solve for x
    x = 47,662,783,181,614,080/103,018,591
  6. Step 6: Final answer
    x = 462,661,959.54

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.