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Finding the Fourth Proportional to 92,920.82, 128,230.02 and 50,479.65

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Solution

The fourth proportional to 92,920.82, 128,230.02 and 50,479.65 is: 69,661.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,920.82 : 128,230.02 = 50,479.65 : x
  2. Step 2: Convert to fraction form
    92,920.82/128,230.02 = 50,479.65/x
  3. Step 3: Cross multiply
    92,920.82x = 128,230.02 × 50,479.65
  4. Step 4: Simplify right side
    92,920.82x = 6,473,006,529.09
  5. Step 5: Solve for x
    x = 6,473,006,529.09/92,920.82
  6. Step 6: Final answer
    x = 69,661.53

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