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Finding the Fourth Proportional to 71,003.12, 106,403.18 and 52,135.11

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Solution

The fourth proportional to 71,003.12, 106,403.18 and 52,135.11 is: 78,128.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,003.12 : 106,403.18 = 52,135.11 : x
  2. Step 2: Convert to fraction form
    71,003.12/106,403.18 = 52,135.11/x
  3. Step 3: Cross multiply
    71,003.12x = 106,403.18 × 52,135.11
  4. Step 4: Simplify right side
    71,003.12x = 5,547,341,232.97
  5. Step 5: Solve for x
    x = 5,547,341,232.97/71,003.12
  6. Step 6: Final answer
    x = 78,128.14

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