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Finding the Fourth Proportional to 208,689.60, 313,207.20 and 96,542.40

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Solution

The fourth proportional to 208,689.60, 313,207.20 and 96,542.40 is: 144,893.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,689.60 : 313,207.20 = 96,542.40 : x
  2. Step 2: Convert to fraction form
    208,689.60/313,207.20 = 96,542.40/x
  3. Step 3: Cross multiply
    208,689.60x = 313,207.20 × 96,542.40
  4. Step 4: Simplify right side
    208,689.60x = 30,237,774,785.28
  5. Step 5: Solve for x
    x = 30,237,774,785.28/208,689.60
  6. Step 6: Final answer
    x = 144,893.54

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