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Finding the Fourth Proportional to 92,979.72, 128,306.54 and 50,537.88

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Solution

The fourth proportional to 92,979.72, 128,306.54 and 50,537.88 is: 69,739.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,979.72 : 128,306.54 = 50,537.88 : x
  2. Step 2: Convert to fraction form
    92,979.72/128,306.54 = 50,537.88/x
  3. Step 3: Cross multiply
    92,979.72x = 128,306.54 × 50,537.88
  4. Step 4: Simplify right side
    92,979.72x = 6,484,340,521.74
  5. Step 5: Solve for x
    x = 6,484,340,521.74/92,979.72
  6. Step 6: Final answer
    x = 69,739.30

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