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Finding the Fourth Proportional to 177,728.40, 266,743.80 and 72,622.80

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Solution

The fourth proportional to 177,728.40, 266,743.80 and 72,622.80 is: 108,995.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,728.40 : 266,743.80 = 72,622.80 : x
  2. Step 2: Convert to fraction form
    177,728.40/266,743.80 = 72,622.80/x
  3. Step 3: Cross multiply
    177,728.40x = 266,743.80 × 72,622.80
  4. Step 4: Simplify right side
    177,728.40x = 19,371,681,638.64
  5. Step 5: Solve for x
    x = 19,371,681,638.64/177,728.40
  6. Step 6: Final answer
    x = 108,995.98

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