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Finding the Fourth Proportional to 115,199.62, 158,942.35 and 74,972.59

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Solution

The fourth proportional to 115,199.62, 158,942.35 and 74,972.59 is: 103,440.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,199.62 : 158,942.35 = 74,972.59 : x
  2. Step 2: Convert to fraction form
    115,199.62/158,942.35 = 74,972.59/x
  3. Step 3: Cross multiply
    115,199.62x = 158,942.35 × 74,972.59
  4. Step 4: Simplify right side
    115,199.62x = 11,916,319,336.55
  5. Step 5: Solve for x
    x = 11,916,319,336.55/115,199.62
  6. Step 6: Final answer
    x = 103,440.62

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