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Finding the Fourth Proportional to 266,052.80, 399,079.16 and 177,479.28

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Solution

The fourth proportional to 266,052.80, 399,079.16 and 177,479.28 is: 266,218.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,052.80 : 399,079.16 = 177,479.28 : x
  2. Step 2: Convert to fraction form
    266,052.80/399,079.16 = 177,479.28/x
  3. Step 3: Cross multiply
    266,052.80x = 399,079.16 × 177,479.28
  4. Step 4: Simplify right side
    266,052.80x = 70,828,281,979.80
  5. Step 5: Solve for x
    x = 70,828,281,979.80/266,052.80
  6. Step 6: Final answer
    x = 266,218.89

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