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Finding the Fourth Proportional to 512,463,413.80, 768,620,471.10 and 148,919,861.80

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Solution

The fourth proportional to 512,463,413.80, 768,620,471.10 and 148,919,861.80 is: 223,358,099.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,463,413.80 : 768,620,471.10 = 148,919,861.80 : x
  2. Step 2: Convert to fraction form
    512,463,413.80/768,620,471.10 = 148,919,861.80/x
  3. Step 3: Cross multiply
    512,463,413.80x = 768,620,471.10 × 148,919,861.80
  4. Step 4: Simplify right side
    512,463,413.80x = 114,462,854,332,862,912
  5. Step 5: Solve for x
    x = 114,462,854,332,862,912/512,463,413.80
  6. Step 6: Final answer
    x = 223,358,099.82

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