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Finding the Fourth Proportional to 181,991.20, 273,025.20 and 57,344.80

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Solution

The fourth proportional to 181,991.20, 273,025.20 and 57,344.80 is: 86,029.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,991.20 : 273,025.20 = 57,344.80 : x
  2. Step 2: Convert to fraction form
    181,991.20/273,025.20 = 57,344.80/x
  3. Step 3: Cross multiply
    181,991.20x = 273,025.20 × 57,344.80
  4. Step 4: Simplify right side
    181,991.20x = 15,656,575,488.96
  5. Step 5: Solve for x
    x = 15,656,575,488.96/181,991.20
  6. Step 6: Final answer
    x = 86,029.30

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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.