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Finding the Fourth Proportional to 456,278.55, 684,189.41 and 140,694.45

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Solution

The fourth proportional to 456,278.55, 684,189.41 and 140,694.45 is: 210,971.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,278.55 : 684,189.41 = 140,694.45 : x
  2. Step 2: Convert to fraction form
    456,278.55/684,189.41 = 140,694.45/x
  3. Step 3: Cross multiply
    456,278.55x = 684,189.41 × 140,694.45
  4. Step 4: Simplify right side
    456,278.55x = 96,261,652,032.30
  5. Step 5: Solve for x
    x = 96,261,652,032.30/456,278.55
  6. Step 6: Final answer
    x = 210,971.24

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