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Finding the Fourth Proportional to 85,385.22, 128,084 and 32,794.72

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Solution

The fourth proportional to 85,385.22, 128,084 and 32,794.72 is: 49,194.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,385.22 : 128,084 = 32,794.72 : x
  2. Step 2: Convert to fraction form
    85,385.22/128,084 = 32,794.72/x
  3. Step 3: Cross multiply
    85,385.22x = 128,084 × 32,794.72
  4. Step 4: Simplify right side
    85,385.22x = 4,200,478,916.48
  5. Step 5: Solve for x
    x = 4,200,478,916.48/85,385.22
  6. Step 6: Final answer
    x = 49,194.45

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