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Finding the Fourth Proportional to 178,830.72, 268,103.52 and 115,715.52

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Solution

The fourth proportional to 178,830.72, 268,103.52 and 115,715.52 is: 173,481.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,830.72 : 268,103.52 = 115,715.52 : x
  2. Step 2: Convert to fraction form
    178,830.72/268,103.52 = 115,715.52/x
  3. Step 3: Cross multiply
    178,830.72x = 268,103.52 × 115,715.52
  4. Step 4: Simplify right side
    178,830.72x = 31,023,738,230.63
  5. Step 5: Solve for x
    x = 31,023,738,230.63/178,830.72
  6. Step 6: Final answer
    x = 173,481.03

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