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Finding the Fourth Proportional to 83,680.89, 115,475.52 and 47,874.84

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Solution

The fourth proportional to 83,680.89, 115,475.52 and 47,874.84 is: 66,064.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,680.89 : 115,475.52 = 47,874.84 : x
  2. Step 2: Convert to fraction form
    83,680.89/115,475.52 = 47,874.84/x
  3. Step 3: Cross multiply
    83,680.89x = 115,475.52 × 47,874.84
  4. Step 4: Simplify right side
    83,680.89x = 5,528,372,043.92
  5. Step 5: Solve for x
    x = 5,528,372,043.92/83,680.89
  6. Step 6: Final answer
    x = 66,064.93

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