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Finding the Fourth Proportional to 78,497.37, 117,729.56 and 25,894.53

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Solution

The fourth proportional to 78,497.37, 117,729.56 and 25,894.53 is: 38,836.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,497.37 : 117,729.56 = 25,894.53 : x
  2. Step 2: Convert to fraction form
    78,497.37/117,729.56 = 25,894.53/x
  3. Step 3: Cross multiply
    78,497.37x = 117,729.56 × 25,894.53
  4. Step 4: Simplify right side
    78,497.37x = 3,048,551,034.66
  5. Step 5: Solve for x
    x = 3,048,551,034.66/78,497.37
  6. Step 6: Final answer
    x = 38,836.35

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