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Finding the Fourth Proportional to 54,230.40, 81,345.60 and 53,452.80

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Solution

The fourth proportional to 54,230.40, 81,345.60 and 53,452.80 is: 80,179.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,230.40 : 81,345.60 = 53,452.80 : x
  2. Step 2: Convert to fraction form
    54,230.40/81,345.60 = 53,452.80/x
  3. Step 3: Cross multiply
    54,230.40x = 81,345.60 × 53,452.80
  4. Step 4: Simplify right side
    54,230.40x = 4,348,150,087.68
  5. Step 5: Solve for x
    x = 4,348,150,087.68/54,230.40
  6. Step 6: Final answer
    x = 80,179.20

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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.