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Finding the Fourth Proportional to 355,909.48, 491,155.12 and 194,764.56

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Solution

The fourth proportional to 355,909.48, 491,155.12 and 194,764.56 is: 268,775.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,909.48 : 491,155.12 = 194,764.56 : x
  2. Step 2: Convert to fraction form
    355,909.48/491,155.12 = 194,764.56/x
  3. Step 3: Cross multiply
    355,909.48x = 491,155.12 × 194,764.56
  4. Step 4: Simplify right side
    355,909.48x = 95,659,610,838.55
  5. Step 5: Solve for x
    x = 95,659,610,838.55/355,909.48
  6. Step 6: Final answer
    x = 268,775.11

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