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Finding the Fourth Proportional to 57,560.60, 86,227.90 and 51,291.20

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Solution

The fourth proportional to 57,560.60, 86,227.90 and 51,291.20 is: 76,836.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,560.60 : 86,227.90 = 51,291.20 : x
  2. Step 2: Convert to fraction form
    57,560.60/86,227.90 = 51,291.20/x
  3. Step 3: Cross multiply
    57,560.60x = 86,227.90 × 51,291.20
  4. Step 4: Simplify right side
    57,560.60x = 4,422,732,464.48
  5. Step 5: Solve for x
    x = 4,422,732,464.48/57,560.60
  6. Step 6: Final answer
    x = 76,836.11

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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.