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Finding the Third Proportional to 188,699,728 and 403,631,990

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Solution

The third proportional to 188,699,728 and 403,631,990 is: 863,375,825.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,699,728 : 403,631,990 = 403,631,990 : x
  2. Step 2: Convert to fraction form
    188,699,728/403,631,990 = 403,631,990/x
  3. Step 3: Cross multiply
    188,699,728x = 403,631,990 × 403,631,990
  4. Step 4: Simplify right side
    188,699,728x = 162,918,783,351,360,096
  5. Step 5: Solve for x
    x = 162,918,783,351,360,096/188,699,728
  6. Step 6: Final answer
    x = 863,375,825.06

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.