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Finding the Fourth Proportional to 205,180.80, 307,252.80 and 134,678.40

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Solution

The fourth proportional to 205,180.80, 307,252.80 and 134,678.40 is: 201,677.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,180.80 : 307,252.80 = 134,678.40 : x
  2. Step 2: Convert to fraction form
    205,180.80/307,252.80 = 134,678.40/x
  3. Step 3: Cross multiply
    205,180.80x = 307,252.80 × 134,678.40
  4. Step 4: Simplify right side
    205,180.80x = 41,380,315,499.52
  5. Step 5: Solve for x
    x = 41,380,315,499.52/205,180.80
  6. Step 6: Final answer
    x = 201,677.33

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