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Finding the Fourth Proportional to 208,832.40, 313,248.60 and 68,605.20

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Solution

The fourth proportional to 208,832.40, 313,248.60 and 68,605.20 is: 102,907.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,832.40 : 313,248.60 = 68,605.20 : x
  2. Step 2: Convert to fraction form
    208,832.40/313,248.60 = 68,605.20/x
  3. Step 3: Cross multiply
    208,832.40x = 313,248.60 × 68,605.20
  4. Step 4: Simplify right side
    208,832.40x = 21,490,482,852.72
  5. Step 5: Solve for x
    x = 21,490,482,852.72/208,832.40
  6. Step 6: Final answer
    x = 102,907.80

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