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Finding the Fourth Proportional to 76,674.64, 105,776.04 and 55,420.24

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Solution

The fourth proportional to 76,674.64, 105,776.04 and 55,420.24 is: 76,454.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,674.64 : 105,776.04 = 55,420.24 : x
  2. Step 2: Convert to fraction form
    76,674.64/105,776.04 = 55,420.24/x
  3. Step 3: Cross multiply
    76,674.64x = 105,776.04 × 55,420.24
  4. Step 4: Simplify right side
    76,674.64x = 5,862,133,523.05
  5. Step 5: Solve for x
    x = 5,862,133,523.05/76,674.64
  6. Step 6: Final answer
    x = 76,454.66

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