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Finding the Fourth Proportional to 54,379.92, 75,031.44 and 31,705.28

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Solution

The fourth proportional to 54,379.92, 75,031.44 and 31,705.28 is: 43,745.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,379.92 : 75,031.44 = 31,705.28 : x
  2. Step 2: Convert to fraction form
    54,379.92/75,031.44 = 31,705.28/x
  3. Step 3: Cross multiply
    54,379.92x = 75,031.44 × 31,705.28
  4. Step 4: Simplify right side
    54,379.92x = 2,378,892,814.00
  5. Step 5: Solve for x
    x = 2,378,892,814.00/54,379.92
  6. Step 6: Final answer
    x = 43,745.79

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