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Finding the Fourth Proportional to 81,405.52, 112,340.74 and 53,094.96

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Solution

The fourth proportional to 81,405.52, 112,340.74 and 53,094.96 is: 73,271.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,405.52 : 112,340.74 = 53,094.96 : x
  2. Step 2: Convert to fraction form
    81,405.52/112,340.74 = 53,094.96/x
  3. Step 3: Cross multiply
    81,405.52x = 112,340.74 × 53,094.96
  4. Step 4: Simplify right side
    81,405.52x = 5,964,727,096.67
  5. Step 5: Solve for x
    x = 5,964,727,096.67/81,405.52
  6. Step 6: Final answer
    x = 73,271.78

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