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Finding the Fourth Proportional to 57,665.20, 86,562.60 and 44,575.60

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Solution

The fourth proportional to 57,665.20, 86,562.60 and 44,575.60 is: 66,913.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,665.20 : 86,562.60 = 44,575.60 : x
  2. Step 2: Convert to fraction form
    57,665.20/86,562.60 = 44,575.60/x
  3. Step 3: Cross multiply
    57,665.20x = 86,562.60 × 44,575.60
  4. Step 4: Simplify right side
    57,665.20x = 3,858,579,832.56
  5. Step 5: Solve for x
    x = 3,858,579,832.56/57,665.20
  6. Step 6: Final answer
    x = 66,913.49

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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.