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Finding the Fourth Proportional to 192,966.90, 289,461.72 and 74,638.86

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Solution

The fourth proportional to 192,966.90, 289,461.72 and 74,638.86 is: 111,962.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,966.90 : 289,461.72 = 74,638.86 : x
  2. Step 2: Convert to fraction form
    192,966.90/289,461.72 = 74,638.86/x
  3. Step 3: Cross multiply
    192,966.90x = 289,461.72 × 74,638.86
  4. Step 4: Simplify right side
    192,966.90x = 21,605,092,794.44
  5. Step 5: Solve for x
    x = 21,605,092,794.44/192,966.90
  6. Step 6: Final answer
    x = 111,962.69

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