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Finding the Fourth Proportional to 107,920.80, 161,881.20 and 96,645.60

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Solution

The fourth proportional to 107,920.80, 161,881.20 and 96,645.60 is: 144,968.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,920.80 : 161,881.20 = 96,645.60 : x
  2. Step 2: Convert to fraction form
    107,920.80/161,881.20 = 96,645.60/x
  3. Step 3: Cross multiply
    107,920.80x = 161,881.20 × 96,645.60
  4. Step 4: Simplify right side
    107,920.80x = 15,645,105,702.72
  5. Step 5: Solve for x
    x = 15,645,105,702.72/107,920.80
  6. Step 6: Final answer
    x = 144,968.40

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