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Finding the Fourth Proportional to 205,750.80, 308,626.20 and 191,926.80

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Solution

The fourth proportional to 205,750.80, 308,626.20 and 191,926.80 is: 287,890.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,750.80 : 308,626.20 = 191,926.80 : x
  2. Step 2: Convert to fraction form
    205,750.80/308,626.20 = 191,926.80/x
  3. Step 3: Cross multiply
    205,750.80x = 308,626.20 × 191,926.80
  4. Step 4: Simplify right side
    205,750.80x = 59,233,638,962.16
  5. Step 5: Solve for x
    x = 59,233,638,962.16/205,750.80
  6. Step 6: Final answer
    x = 287,890.20

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