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Finding the Fourth Proportional to 173,855.20, 260,955.60 and 85,208.80

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Solution

The fourth proportional to 173,855.20, 260,955.60 and 85,208.80 is: 127,897.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,855.20 : 260,955.60 = 85,208.80 : x
  2. Step 2: Convert to fraction form
    173,855.20/260,955.60 = 85,208.80/x
  3. Step 3: Cross multiply
    173,855.20x = 260,955.60 × 85,208.80
  4. Step 4: Simplify right side
    173,855.20x = 22,235,713,529.28
  5. Step 5: Solve for x
    x = 22,235,713,529.28/173,855.20
  6. Step 6: Final answer
    x = 127,897.89

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