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Finding the Fourth Proportional to 89,887.92, 134,878.95 and 33,766.76

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Solution

The fourth proportional to 89,887.92, 134,878.95 and 33,766.76 is: 50,667.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,887.92 : 134,878.95 = 33,766.76 : x
  2. Step 2: Convert to fraction form
    89,887.92/134,878.95 = 33,766.76/x
  3. Step 3: Cross multiply
    89,887.92x = 134,878.95 × 33,766.76
  4. Step 4: Simplify right side
    89,887.92x = 4,554,425,133.70
  5. Step 5: Solve for x
    x = 4,554,425,133.70/89,887.92
  6. Step 6: Final answer
    x = 50,667.82

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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.