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Finding the Fourth Proportional to 93,132.78, 128,523.03 and 50,691.21

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Solution

The fourth proportional to 93,132.78, 128,523.03 and 50,691.21 is: 69,953.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,132.78 : 128,523.03 = 50,691.21 : x
  2. Step 2: Convert to fraction form
    93,132.78/128,523.03 = 50,691.21/x
  3. Step 3: Cross multiply
    93,132.78x = 128,523.03 × 50,691.21
  4. Step 4: Simplify right side
    93,132.78x = 6,514,987,903.57
  5. Step 5: Solve for x
    x = 6,514,987,903.57/93,132.78
  6. Step 6: Final answer
    x = 69,953.76

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