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Finding the Fourth Proportional to 78,054.84, 117,100.89 and 25,464.38

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Solution

The fourth proportional to 78,054.84, 117,100.89 and 25,464.38 is: 38,202.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,054.84 : 117,100.89 = 25,464.38 : x
  2. Step 2: Convert to fraction form
    78,054.84/117,100.89 = 25,464.38/x
  3. Step 3: Cross multiply
    78,054.84x = 117,100.89 × 25,464.38
  4. Step 4: Simplify right side
    78,054.84x = 2,981,900,975.79
  5. Step 5: Solve for x
    x = 2,981,900,975.79/78,054.84
  6. Step 6: Final answer
    x = 38,202.64

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