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Finding the Fourth Proportional to 191,646.80, 287,470.20 and 73,257.20

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Solution

The fourth proportional to 191,646.80, 287,470.20 and 73,257.20 is: 109,885.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,646.80 : 287,470.20 = 73,257.20 : x
  2. Step 2: Convert to fraction form
    191,646.80/287,470.20 = 73,257.20/x
  3. Step 3: Cross multiply
    191,646.80x = 287,470.20 × 73,257.20
  4. Step 4: Simplify right side
    191,646.80x = 21,059,261,935.44
  5. Step 5: Solve for x
    x = 21,059,261,935.44/191,646.80
  6. Step 6: Final answer
    x = 109,885.80

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