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Finding the Fourth Proportional to 354,578,676.18, 531,444,863.78 and 165,029,728.31

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Solution

The fourth proportional to 354,578,676.18, 531,444,863.78 and 165,029,728.31 is: 247,347,647.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,578,676.18 : 531,444,863.78 = 165,029,728.31 : x
  2. Step 2: Convert to fraction form
    354,578,676.18/531,444,863.78 = 165,029,728.31/x
  3. Step 3: Cross multiply
    354,578,676.18x = 531,444,863.78 × 165,029,728.31
  4. Step 4: Simplify right side
    354,578,676.18x = 87,704,201,481,358,352
  5. Step 5: Solve for x
    x = 87,704,201,481,358,352/354,578,676.18
  6. Step 6: Final answer
    x = 247,347,647.71

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