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Finding the Fourth Proportional to 115,361.28, 172,730.40 and 59,840.64

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Solution

The fourth proportional to 115,361.28, 172,730.40 and 59,840.64 is: 89,599.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,361.28 : 172,730.40 = 59,840.64 : x
  2. Step 2: Convert to fraction form
    115,361.28/172,730.40 = 59,840.64/x
  3. Step 3: Cross multiply
    115,361.28x = 172,730.40 × 59,840.64
  4. Step 4: Simplify right side
    115,361.28x = 10,336,297,683.46
  5. Step 5: Solve for x
    x = 10,336,297,683.46/115,361.28
  6. Step 6: Final answer
    x = 89,599.37

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