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Finding the Fourth Proportional to 55,518.54, 76,622.87 and 31,639.74

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Solution

The fourth proportional to 55,518.54, 76,622.87 and 31,639.74 is: 43,666.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,518.54 : 76,622.87 = 31,639.74 : x
  2. Step 2: Convert to fraction form
    55,518.54/76,622.87 = 31,639.74/x
  3. Step 3: Cross multiply
    55,518.54x = 76,622.87 × 31,639.74
  4. Step 4: Simplify right side
    55,518.54x = 2,424,327,684.85
  5. Step 5: Solve for x
    x = 2,424,327,684.85/55,518.54
  6. Step 6: Final answer
    x = 43,666.99

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