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Finding the Fourth Proportional to 175,669.20, 263,503.80 and 128,437.20

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Solution

The fourth proportional to 175,669.20, 263,503.80 and 128,437.20 is: 192,655.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,669.20 : 263,503.80 = 128,437.20 : x
  2. Step 2: Convert to fraction form
    175,669.20/263,503.80 = 128,437.20/x
  3. Step 3: Cross multiply
    175,669.20x = 263,503.80 × 128,437.20
  4. Step 4: Simplify right side
    175,669.20x = 33,843,690,261.36
  5. Step 5: Solve for x
    x = 33,843,690,261.36/175,669.20
  6. Step 6: Final answer
    x = 192,655.80

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