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Finding the Fourth Proportional to 98,863.92, 136,441.95 and 56,428.83

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Solution

The fourth proportional to 98,863.92, 136,441.95 and 56,428.83 is: 77,877.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,863.92 : 136,441.95 = 56,428.83 : x
  2. Step 2: Convert to fraction form
    98,863.92/136,441.95 = 56,428.83/x
  3. Step 3: Cross multiply
    98,863.92x = 136,441.95 × 56,428.83
  4. Step 4: Simplify right side
    98,863.92x = 7,699,259,601.42
  5. Step 5: Solve for x
    x = 7,699,259,601.42/98,863.92
  6. Step 6: Final answer
    x = 77,877.34

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