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Finding the Fourth Proportional to 83,121.64, 114,716.12 and 49,587.64

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Solution

The fourth proportional to 83,121.64, 114,716.12 and 49,587.64 is: 68,435.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,121.64 : 114,716.12 = 49,587.64 : x
  2. Step 2: Convert to fraction form
    83,121.64/114,716.12 = 49,587.64/x
  3. Step 3: Cross multiply
    83,121.64x = 114,716.12 × 49,587.64
  4. Step 4: Simplify right side
    83,121.64x = 5,688,501,660.76
  5. Step 5: Solve for x
    x = 5,688,501,660.76/83,121.64
  6. Step 6: Final answer
    x = 68,435.87

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