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Finding the Fourth Proportional to 208,447.60, 312,671.40 and 97,855.60

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Solution

The fourth proportional to 208,447.60, 312,671.40 and 97,855.60 is: 146,783.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,447.60 : 312,671.40 = 97,855.60 : x
  2. Step 2: Convert to fraction form
    208,447.60/312,671.40 = 97,855.60/x
  3. Step 3: Cross multiply
    208,447.60x = 312,671.40 × 97,855.60
  4. Step 4: Simplify right side
    208,447.60x = 30,596,647,449.84
  5. Step 5: Solve for x
    x = 30,596,647,449.84/208,447.60
  6. Step 6: Final answer
    x = 146,783.40

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