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Finding the Fourth Proportional to 78,720.93, 118,052.00 and 25,399.52

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Solution

The fourth proportional to 78,720.93, 118,052.00 and 25,399.52 is: 38,089.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,720.93 : 118,052.00 = 25,399.52 : x
  2. Step 2: Convert to fraction form
    78,720.93/118,052.00 = 25,399.52/x
  3. Step 3: Cross multiply
    78,720.93x = 118,052.00 × 25,399.52
  4. Step 4: Simplify right side
    78,720.93x = 2,998,463,655.90
  5. Step 5: Solve for x
    x = 2,998,463,655.90/78,720.93
  6. Step 6: Final answer
    x = 38,089.79

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