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Finding the Fourth Proportional to 84,087.02, 116,087.55 and 55,831.34

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Solution

The fourth proportional to 84,087.02, 116,087.55 and 55,831.34 is: 77,078.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,087.02 : 116,087.55 = 55,831.34 : x
  2. Step 2: Convert to fraction form
    84,087.02/116,087.55 = 55,831.34/x
  3. Step 3: Cross multiply
    84,087.02x = 116,087.55 × 55,831.34
  4. Step 4: Simplify right side
    84,087.02x = 6,481,323,473.82
  5. Step 5: Solve for x
    x = 6,481,323,473.82/84,087.02
  6. Step 6: Final answer
    x = 77,078.76

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