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Finding the Fourth Proportional to 120,734.10, 181,101.15 and 111,402.90

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Solution

The fourth proportional to 120,734.10, 181,101.15 and 111,402.90 is: 167,104.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,734.10 : 181,101.15 = 111,402.90 : x
  2. Step 2: Convert to fraction form
    120,734.10/181,101.15 = 111,402.90/x
  3. Step 3: Cross multiply
    120,734.10x = 181,101.15 × 111,402.90
  4. Step 4: Simplify right side
    120,734.10x = 20,175,193,303.34
  5. Step 5: Solve for x
    x = 20,175,193,303.34/120,734.10
  6. Step 6: Final answer
    x = 167,104.35

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