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Finding the Fourth Proportional to 187,895.60, 281,861.60 and 54,772.88

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Solution

The fourth proportional to 187,895.60, 281,861.60 and 54,772.88 is: 82,164.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,895.60 : 281,861.60 = 54,772.88 : x
  2. Step 2: Convert to fraction form
    187,895.60/281,861.60 = 54,772.88/x
  3. Step 3: Cross multiply
    187,895.60x = 281,861.60 × 54,772.88
  4. Step 4: Simplify right side
    187,895.60x = 15,438,371,593.41
  5. Step 5: Solve for x
    x = 15,438,371,593.41/187,895.60
  6. Step 6: Final answer
    x = 82,164.63

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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.