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Finding the Fourth Proportional to 203,913.68, 305,925.47 and 85,553.24

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Solution

The fourth proportional to 203,913.68, 305,925.47 and 85,553.24 is: 128,352.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,913.68 : 305,925.47 = 85,553.24 : x
  2. Step 2: Convert to fraction form
    203,913.68/305,925.47 = 85,553.24/x
  3. Step 3: Cross multiply
    203,913.68x = 305,925.47 × 85,553.24
  4. Step 4: Simplify right side
    203,913.68x = 26,172,914,729.26
  5. Step 5: Solve for x
    x = 26,172,914,729.26/203,913.68
  6. Step 6: Final answer
    x = 128,352.91

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