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Finding the Fourth Proportional to 266,135.60, 399,203.40 and 133,036.40

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Solution

The fourth proportional to 266,135.60, 399,203.40 and 133,036.40 is: 199,554.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,135.60 : 399,203.40 = 133,036.40 : x
  2. Step 2: Convert to fraction form
    266,135.60/399,203.40 = 133,036.40/x
  3. Step 3: Cross multiply
    266,135.60x = 399,203.40 × 133,036.40
  4. Step 4: Simplify right side
    266,135.60x = 53,108,583,203.76
  5. Step 5: Solve for x
    x = 53,108,583,203.76/266,135.60
  6. Step 6: Final answer
    x = 199,554.60

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