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Finding the Fourth Proportional to 97,978.52, 135,211.94 and 55,536.16

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Solution

The fourth proportional to 97,978.52, 135,211.94 and 55,536.16 is: 76,640.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,978.52 : 135,211.94 = 55,536.16 : x
  2. Step 2: Convert to fraction form
    97,978.52/135,211.94 = 55,536.16/x
  3. Step 3: Cross multiply
    97,978.52x = 135,211.94 × 55,536.16
  4. Step 4: Simplify right side
    97,978.52x = 7,509,151,933.75
  5. Step 5: Solve for x
    x = 7,509,151,933.75/97,978.52
  6. Step 6: Final answer
    x = 76,640.80

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