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Finding the Fourth Proportional to 331,606.40, 497,409.60 and 109,990.40

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Solution

The fourth proportional to 331,606.40, 497,409.60 and 109,990.40 is: 164,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,606.40 : 497,409.60 = 109,990.40 : x
  2. Step 2: Convert to fraction form
    331,606.40/497,409.60 = 109,990.40/x
  3. Step 3: Cross multiply
    331,606.40x = 497,409.60 × 109,990.40
  4. Step 4: Simplify right side
    331,606.40x = 54,710,280,867.84
  5. Step 5: Solve for x
    x = 54,710,280,867.84/331,606.40
  6. Step 6: Final answer
    x = 164,985.60

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