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Finding the Fourth Proportional to 178,389.20, 267,583.80 and 143,397.20

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Solution

The fourth proportional to 178,389.20, 267,583.80 and 143,397.20 is: 215,095.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,389.20 : 267,583.80 = 143,397.20 : x
  2. Step 2: Convert to fraction form
    178,389.20/267,583.80 = 143,397.20/x
  3. Step 3: Cross multiply
    178,389.20x = 267,583.80 × 143,397.20
  4. Step 4: Simplify right side
    178,389.20x = 38,370,767,685.36
  5. Step 5: Solve for x
    x = 38,370,767,685.36/178,389.20
  6. Step 6: Final answer
    x = 215,095.80

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