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Finding the Fourth Proportional to 81,655.68, 112,685.76 and 45,846.72

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Solution

The fourth proportional to 81,655.68, 112,685.76 and 45,846.72 is: 63,268.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,655.68 : 112,685.76 = 45,846.72 : x
  2. Step 2: Convert to fraction form
    81,655.68/112,685.76 = 45,846.72/x
  3. Step 3: Cross multiply
    81,655.68x = 112,685.76 × 45,846.72
  4. Step 4: Simplify right side
    81,655.68x = 5,166,272,486.71
  5. Step 5: Solve for x
    x = 5,166,272,486.71/81,655.68
  6. Step 6: Final answer
    x = 63,268.99

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