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Finding the Fourth Proportional to 55,722.48, 76,896.75 and 30,228.86

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Solution

The fourth proportional to 55,722.48, 76,896.75 and 30,228.86 is: 41,715.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,722.48 : 76,896.75 = 30,228.86 : x
  2. Step 2: Convert to fraction form
    55,722.48/76,896.75 = 30,228.86/x
  3. Step 3: Cross multiply
    55,722.48x = 76,896.75 × 30,228.86
  4. Step 4: Simplify right side
    55,722.48x = 2,324,500,705.72
  5. Step 5: Solve for x
    x = 2,324,500,705.72/55,722.48
  6. Step 6: Final answer
    x = 41,715.67

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