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Finding the Fourth Proportional to 57,850.20, 86,605.20 and 43,124.40

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Solution

The fourth proportional to 57,850.20, 86,605.20 and 43,124.40 is: 64,559.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,850.20 : 86,605.20 = 43,124.40 : x
  2. Step 2: Convert to fraction form
    57,850.20/86,605.20 = 43,124.40/x
  3. Step 3: Cross multiply
    57,850.20x = 86,605.20 × 43,124.40
  4. Step 4: Simplify right side
    57,850.20x = 3,734,797,286.88
  5. Step 5: Solve for x
    x = 3,734,797,286.88/57,850.20
  6. Step 6: Final answer
    x = 64,559.80

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1.5x scale

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.