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Finding the Fourth Proportional to 98,376.84, 135,873.36 and 71,638.92

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Solution

The fourth proportional to 98,376.84, 135,873.36 and 71,638.92 is: 98,944.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,376.84 : 135,873.36 = 71,638.92 : x
  2. Step 2: Convert to fraction form
    98,376.84/135,873.36 = 71,638.92/x
  3. Step 3: Cross multiply
    98,376.84x = 135,873.36 × 71,638.92
  4. Step 4: Simplify right side
    98,376.84x = 9,733,820,767.17
  5. Step 5: Solve for x
    x = 9,733,820,767.17/98,376.84
  6. Step 6: Final answer
    x = 98,944.23

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