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Finding the Fourth Proportional to 57,342.40, 86,013.60 and 15,222.40

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Solution

The fourth proportional to 57,342.40, 86,013.60 and 15,222.40 is: 22,833.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,342.40 : 86,013.60 = 15,222.40 : x
  2. Step 2: Convert to fraction form
    57,342.40/86,013.60 = 15,222.40/x
  3. Step 3: Cross multiply
    57,342.40x = 86,013.60 × 15,222.40
  4. Step 4: Simplify right side
    57,342.40x = 1,309,333,424.64
  5. Step 5: Solve for x
    x = 1,309,333,424.64/57,342.40
  6. Step 6: Final answer
    x = 22,833.60

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