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Finding the Fourth Proportional to 411,893.96, 617,721.60 and 123,693.98

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Solution

The fourth proportional to 411,893.96, 617,721.60 and 123,693.98 is: 185,505.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,893.96 : 617,721.60 = 123,693.98 : x
  2. Step 2: Convert to fraction form
    411,893.96/617,721.60 = 123,693.98/x
  3. Step 3: Cross multiply
    411,893.96x = 617,721.60 × 123,693.98
  4. Step 4: Simplify right side
    411,893.96x = 76,408,439,915.43
  5. Step 5: Solve for x
    x = 76,408,439,915.43/411,893.96
  6. Step 6: Final answer
    x = 185,505.12

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