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Finding the Fourth Proportional to 73,285.80, 109,928.70 and 66,506.10

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Solution

The fourth proportional to 73,285.80, 109,928.70 and 66,506.10 is: 99,759.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,285.80 : 109,928.70 = 66,506.10 : x
  2. Step 2: Convert to fraction form
    73,285.80/109,928.70 = 66,506.10/x
  3. Step 3: Cross multiply
    73,285.80x = 109,928.70 × 66,506.10
  4. Step 4: Simplify right side
    73,285.80x = 7,310,929,115.07
  5. Step 5: Solve for x
    x = 7,310,929,115.07/73,285.80
  6. Step 6: Final answer
    x = 99,759.15

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