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Finding the Fourth Proportional to 57,758.62, 80,114.67 and 56,222.42

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Solution

The fourth proportional to 57,758.62, 80,114.67 and 56,222.42 is: 77,983.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,758.62 : 80,114.67 = 56,222.42 : x
  2. Step 2: Convert to fraction form
    57,758.62/80,114.67 = 56,222.42/x
  3. Step 3: Cross multiply
    57,758.62x = 80,114.67 × 56,222.42
  4. Step 4: Simplify right side
    57,758.62x = 4,504,240,624.90
  5. Step 5: Solve for x
    x = 4,504,240,624.90/57,758.62
  6. Step 6: Final answer
    x = 77,983.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.