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Finding the Fourth Proportional to 61,245.30, 91,868.37 and 16,874.46

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Solution

The fourth proportional to 61,245.30, 91,868.37 and 16,874.46 is: 25,311.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,245.30 : 91,868.37 = 16,874.46 : x
  2. Step 2: Convert to fraction form
    61,245.30/91,868.37 = 16,874.46/x
  3. Step 3: Cross multiply
    61,245.30x = 91,868.37 × 16,874.46
  4. Step 4: Simplify right side
    61,245.30x = 1,550,229,134.83
  5. Step 5: Solve for x
    x = 1,550,229,134.83/61,245.30
  6. Step 6: Final answer
    x = 25,311.81

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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.