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Finding the Fourth Proportional to 456,470.80, 684,706.20 and 140,927.20

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Solution

The fourth proportional to 456,470.80, 684,706.20 and 140,927.20 is: 211,390.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,470.80 : 684,706.20 = 140,927.20 : x
  2. Step 2: Convert to fraction form
    456,470.80/684,706.20 = 140,927.20/x
  3. Step 3: Cross multiply
    456,470.80x = 684,706.20 × 140,927.20
  4. Step 4: Simplify right side
    456,470.80x = 96,493,727,588.64
  5. Step 5: Solve for x
    x = 96,493,727,588.64/456,470.80
  6. Step 6: Final answer
    x = 211,390.80

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