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Finding the Fourth Proportional to 259,510.80, 389,266.20 and 93,315.60

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Solution

The fourth proportional to 259,510.80, 389,266.20 and 93,315.60 is: 139,973.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,510.80 : 389,266.20 = 93,315.60 : x
  2. Step 2: Convert to fraction form
    259,510.80/389,266.20 = 93,315.60/x
  3. Step 3: Cross multiply
    259,510.80x = 389,266.20 × 93,315.60
  4. Step 4: Simplify right side
    259,510.80x = 36,324,609,012.72
  5. Step 5: Solve for x
    x = 36,324,609,012.72/259,510.80
  6. Step 6: Final answer
    x = 139,973.40

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