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Finding the Fourth Proportional to 52,059.46, 78,103.78 and 20,916.58

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Solution

The fourth proportional to 52,059.46, 78,103.78 and 20,916.58 is: 31,380.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,059.46 : 78,103.78 = 20,916.58 : x
  2. Step 2: Convert to fraction form
    52,059.46/78,103.78 = 20,916.58/x
  3. Step 3: Cross multiply
    52,059.46x = 78,103.78 × 20,916.58
  4. Step 4: Simplify right side
    52,059.46x = 1,633,663,962.67
  5. Step 5: Solve for x
    x = 1,633,663,962.67/52,059.46
  6. Step 6: Final answer
    x = 31,380.73

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