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Finding the Fourth Proportional to 98,209.17, 147,378.32 and 53,867

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Solution

The fourth proportional to 98,209.17, 147,378.32 and 53,867 is: 80,835.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,209.17 : 147,378.32 = 53,867 : x
  2. Step 2: Convert to fraction form
    98,209.17/147,378.32 = 53,867/x
  3. Step 3: Cross multiply
    98,209.17x = 147,378.32 × 53,867
  4. Step 4: Simplify right side
    98,209.17x = 7,938,827,963.44
  5. Step 5: Solve for x
    x = 7,938,827,963.44/98,209.17
  6. Step 6: Final answer
    x = 80,835.91

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