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Finding the Fourth Proportional to 96,483.76, 133,228.74 and 72,568.78

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Solution

The fourth proportional to 96,483.76, 133,228.74 and 72,568.78 is: 100,205.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,483.76 : 133,228.74 = 72,568.78 : x
  2. Step 2: Convert to fraction form
    96,483.76/133,228.74 = 72,568.78/x
  3. Step 3: Cross multiply
    96,483.76x = 133,228.74 × 72,568.78
  4. Step 4: Simplify right side
    96,483.76x = 9,668,247,122.74
  5. Step 5: Solve for x
    x = 9,668,247,122.74/96,483.76
  6. Step 6: Final answer
    x = 100,205.95

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