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Finding the Fourth Proportional to 98,358.58, 135,731.74 and 55,340.51

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Solution

The fourth proportional to 98,358.58, 135,731.74 and 55,340.51 is: 76,368.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,358.58 : 135,731.74 = 55,340.51 : x
  2. Step 2: Convert to fraction form
    98,358.58/135,731.74 = 55,340.51/x
  3. Step 3: Cross multiply
    98,358.58x = 135,731.74 × 55,340.51
  4. Step 4: Simplify right side
    98,358.58x = 7,511,464,481.55
  5. Step 5: Solve for x
    x = 7,511,464,481.55/98,358.58
  6. Step 6: Final answer
    x = 76,368.17

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