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Finding the Fourth Proportional to 89,283.77, 133,921.32 and 33,134.82

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Solution

The fourth proportional to 89,283.77, 133,921.32 and 33,134.82 is: 49,700.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,283.77 : 133,921.32 = 33,134.82 : x
  2. Step 2: Convert to fraction form
    89,283.77/133,921.32 = 33,134.82/x
  3. Step 3: Cross multiply
    89,283.77x = 133,921.32 × 33,134.82
  4. Step 4: Simplify right side
    89,283.77x = 4,437,458,205.90
  5. Step 5: Solve for x
    x = 4,437,458,205.90/89,283.77
  6. Step 6: Final answer
    x = 49,700.61

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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.