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Finding the Fourth Proportional to 25,908,459.60, 38,837,806.20 and 20,147,998.80

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Solution

The fourth proportional to 25,908,459.60, 38,837,806.20 and 20,147,998.80 is: 30,202,647.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,908,459.60 : 38,837,806.20 = 20,147,998.80 : x
  2. Step 2: Convert to fraction form
    25,908,459.60/38,837,806.20 = 20,147,998.80/x
  3. Step 3: Cross multiply
    25,908,459.60x = 38,837,806.20 × 20,147,998.80
  4. Step 4: Simplify right side
    25,908,459.60x = 782,504,072,712,232.62
  5. Step 5: Solve for x
    x = 782,504,072,712,232.62/25,908,459.60
  6. Step 6: Final answer
    x = 30,202,647.51

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