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Finding the Fourth Proportional to 74,023.09, 111,041.69 and 20,715.10

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Solution

The fourth proportional to 74,023.09, 111,041.69 and 20,715.10 is: 31,074.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,023.09 : 111,041.69 = 20,715.10 : x
  2. Step 2: Convert to fraction form
    74,023.09/111,041.69 = 20,715.10/x
  3. Step 3: Cross multiply
    74,023.09x = 111,041.69 × 20,715.10
  4. Step 4: Simplify right side
    74,023.09x = 2,300,239,712.52
  5. Step 5: Solve for x
    x = 2,300,239,712.52/74,023.09
  6. Step 6: Final answer
    x = 31,074.62

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