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Finding the Fourth Proportional to 121,026.60, 181,539.90 and 115,583.40

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Solution

The fourth proportional to 121,026.60, 181,539.90 and 115,583.40 is: 173,375.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,026.60 : 181,539.90 = 115,583.40 : x
  2. Step 2: Convert to fraction form
    121,026.60/181,539.90 = 115,583.40/x
  3. Step 3: Cross multiply
    121,026.60x = 181,539.90 × 115,583.40
  4. Step 4: Simplify right side
    121,026.60x = 20,982,998,877.66
  5. Step 5: Solve for x
    x = 20,982,998,877.66/121,026.60
  6. Step 6: Final answer
    x = 173,375.10

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