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Finding the Fourth Proportional to 89,295.92, 133,939.56 and 33,146.98

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Solution

The fourth proportional to 89,295.92, 133,939.56 and 33,146.98 is: 49,718.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,295.92 : 133,939.56 = 33,146.98 : x
  2. Step 2: Convert to fraction form
    89,295.92/133,939.56 = 33,146.98/x
  3. Step 3: Cross multiply
    89,295.92x = 133,939.56 × 33,146.98
  4. Step 4: Simplify right side
    89,295.92x = 4,439,691,916.53
  5. Step 5: Solve for x
    x = 4,439,691,916.53/89,295.92
  6. Step 6: Final answer
    x = 49,718.87

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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.