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Finding the Fourth Proportional to 78,451.92, 108,247.32 and 46,609.20

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Solution

The fourth proportional to 78,451.92, 108,247.32 and 46,609.20 is: 64,310.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,451.92 : 108,247.32 = 46,609.20 : x
  2. Step 2: Convert to fraction form
    78,451.92/108,247.32 = 46,609.20/x
  3. Step 3: Cross multiply
    78,451.92x = 108,247.32 × 46,609.20
  4. Step 4: Simplify right side
    78,451.92x = 5,045,320,987.34
  5. Step 5: Solve for x
    x = 5,045,320,987.34/78,451.92
  6. Step 6: Final answer
    x = 64,310.99

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