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Finding the Fourth Proportional to 85,798.12, 118,361.36 and 53,984.56

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Solution

The fourth proportional to 85,798.12, 118,361.36 and 53,984.56 is: 74,473.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,798.12 : 118,361.36 = 53,984.56 : x
  2. Step 2: Convert to fraction form
    85,798.12/118,361.36 = 53,984.56/x
  3. Step 3: Cross multiply
    85,798.12x = 118,361.36 × 53,984.56
  4. Step 4: Simplify right side
    85,798.12x = 6,389,685,940.60
  5. Step 5: Solve for x
    x = 6,389,685,940.60/85,798.12
  6. Step 6: Final answer
    x = 74,473.50

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