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Finding the Fourth Proportional to 91,834.62, 137,765.07 and 28,660.41

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Solution

The fourth proportional to 91,834.62, 137,765.07 and 28,660.41 is: 42,994.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,834.62 : 137,765.07 = 28,660.41 : x
  2. Step 2: Convert to fraction form
    91,834.62/137,765.07 = 28,660.41/x
  3. Step 3: Cross multiply
    91,834.62x = 137,765.07 × 28,660.41
  4. Step 4: Simplify right side
    91,834.62x = 3,948,403,389.88
  5. Step 5: Solve for x
    x = 3,948,403,389.88/91,834.62
  6. Step 6: Final answer
    x = 42,994.72

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