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Finding the Fourth Proportional to 178,392.80, 267,589.20 and 73,287.20

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Solution

The fourth proportional to 178,392.80, 267,589.20 and 73,287.20 is: 109,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,392.80 : 267,589.20 = 73,287.20 : x
  2. Step 2: Convert to fraction form
    178,392.80/267,589.20 = 73,287.20/x
  3. Step 3: Cross multiply
    178,392.80x = 267,589.20 × 73,287.20
  4. Step 4: Simplify right side
    178,392.80x = 19,610,863,218.24
  5. Step 5: Solve for x
    x = 19,610,863,218.24/178,392.80
  6. Step 6: Final answer
    x = 109,930.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.