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Finding the Fourth Proportional to 57,230.75, 78,961.98 and 33,029.77

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Solution

The fourth proportional to 57,230.75, 78,961.98 and 33,029.77 is: 45,571.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,230.75 : 78,961.98 = 33,029.77 : x
  2. Step 2: Convert to fraction form
    57,230.75/78,961.98 = 33,029.77/x
  3. Step 3: Cross multiply
    57,230.75x = 78,961.98 × 33,029.77
  4. Step 4: Simplify right side
    57,230.75x = 2,608,096,038.14
  5. Step 5: Solve for x
    x = 2,608,096,038.14/57,230.75
  6. Step 6: Final answer
    x = 45,571.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.