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Finding the Fourth Proportional to 56,738.98, 85,183.86 and 48,472.12

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Solution

The fourth proportional to 56,738.98, 85,183.86 and 48,472.12 is: 72,772.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,738.98 : 85,183.86 = 48,472.12 : x
  2. Step 2: Convert to fraction form
    56,738.98/85,183.86 = 48,472.12/x
  3. Step 3: Cross multiply
    56,738.98x = 85,183.86 × 48,472.12
  4. Step 4: Simplify right side
    56,738.98x = 4,129,042,283.98
  5. Step 5: Solve for x
    x = 4,129,042,283.98/56,738.98
  6. Step 6: Final answer
    x = 72,772.59

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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.