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Finding the Fourth Proportional to 89,274.72, 133,919.94 and 33,115.44

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Solution

The fourth proportional to 89,274.72, 133,919.94 and 33,115.44 is: 49,676.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,274.72 : 133,919.94 = 33,115.44 : x
  2. Step 2: Convert to fraction form
    89,274.72/133,919.94 = 33,115.44/x
  3. Step 3: Cross multiply
    89,274.72x = 133,919.94 × 33,115.44
  4. Step 4: Simplify right side
    89,274.72x = 4,434,817,737.87
  5. Step 5: Solve for x
    x = 4,434,817,737.87/89,274.72
  6. Step 6: Final answer
    x = 49,676.08

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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.