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Finding the Fourth Proportional to 76,280.40, 114,550.20 and 56,581.20

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Solution

The fourth proportional to 76,280.40, 114,550.20 and 56,581.20 is: 84,967.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,280.40 : 114,550.20 = 56,581.20 : x
  2. Step 2: Convert to fraction form
    76,280.40/114,550.20 = 56,581.20/x
  3. Step 3: Cross multiply
    76,280.40x = 114,550.20 × 56,581.20
  4. Step 4: Simplify right side
    76,280.40x = 6,481,387,776.24
  5. Step 5: Solve for x
    x = 6,481,387,776.24/76,280.40
  6. Step 6: Final answer
    x = 84,967.93

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