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Finding the Fourth Proportional to 187,912.33, 281,861.19 and 61,562.05

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Solution

The fourth proportional to 187,912.33, 281,861.19 and 61,562.05 is: 92,340.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,912.33 : 281,861.19 = 61,562.05 : x
  2. Step 2: Convert to fraction form
    187,912.33/281,861.19 = 61,562.05/x
  3. Step 3: Cross multiply
    187,912.33x = 281,861.19 × 61,562.05
  4. Step 4: Simplify right side
    187,912.33x = 17,351,952,671.84
  5. Step 5: Solve for x
    x = 17,351,952,671.84/187,912.33
  6. Step 6: Final answer
    x = 92,340.68

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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.