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Finding the Fourth Proportional to 97,640.84, 134,742.90 and 55,197.88

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Solution

The fourth proportional to 97,640.84, 134,742.90 and 55,197.88 is: 76,172.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,640.84 : 134,742.90 = 55,197.88 : x
  2. Step 2: Convert to fraction form
    97,640.84/134,742.90 = 55,197.88/x
  3. Step 3: Cross multiply
    97,640.84x = 134,742.90 × 55,197.88
  4. Step 4: Simplify right side
    97,640.84x = 7,437,522,425.05
  5. Step 5: Solve for x
    x = 7,437,522,425.05/97,640.84
  6. Step 6: Final answer
    x = 76,172.25

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