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Finding the Fourth Proportional to 78,900.51, 108,882.15 and 43,090.53

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Solution

The fourth proportional to 78,900.51, 108,882.15 and 43,090.53 is: 59,464.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,900.51 : 108,882.15 = 43,090.53 : x
  2. Step 2: Convert to fraction form
    78,900.51/108,882.15 = 43,090.53/x
  3. Step 3: Cross multiply
    78,900.51x = 108,882.15 × 43,090.53
  4. Step 4: Simplify right side
    78,900.51x = 4,691,789,551.04
  5. Step 5: Solve for x
    x = 4,691,789,551.04/78,900.51
  6. Step 6: Final answer
    x = 59,464.63

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