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Finding the Fourth Proportional to 77,928.66, 116,827.38 and 31,156.02

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Solution

The fourth proportional to 77,928.66, 116,827.38 and 31,156.02 is: 46,707.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,928.66 : 116,827.38 = 31,156.02 : x
  2. Step 2: Convert to fraction form
    77,928.66/116,827.38 = 31,156.02/x
  3. Step 3: Cross multiply
    77,928.66x = 116,827.38 × 31,156.02
  4. Step 4: Simplify right side
    77,928.66x = 3,639,876,187.83
  5. Step 5: Solve for x
    x = 3,639,876,187.83/77,928.66
  6. Step 6: Final answer
    x = 46,707.80

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