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Finding the Fourth Proportional to 56,687.49, 78,228.83 and 31,536.99

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Solution

The fourth proportional to 56,687.49, 78,228.83 and 31,536.99 is: 43,521.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,687.49 : 78,228.83 = 31,536.99 : x
  2. Step 2: Convert to fraction form
    56,687.49/78,228.83 = 31,536.99/x
  3. Step 3: Cross multiply
    56,687.49x = 78,228.83 × 31,536.99
  4. Step 4: Simplify right side
    56,687.49x = 2,467,101,908.26
  5. Step 5: Solve for x
    x = 2,467,101,908.26/56,687.49
  6. Step 6: Final answer
    x = 43,521.10

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