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Finding the Fourth Proportional to 89,231.70, 133,734.15 and 36,581.70

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Solution

The fourth proportional to 89,231.70, 133,734.15 and 36,581.70 is: 54,826.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,231.70 : 133,734.15 = 36,581.70 : x
  2. Step 2: Convert to fraction form
    89,231.70/133,734.15 = 36,581.70/x
  3. Step 3: Cross multiply
    89,231.70x = 133,734.15 × 36,581.70
  4. Step 4: Simplify right side
    89,231.70x = 4,892,222,555.06
  5. Step 5: Solve for x
    x = 4,892,222,555.06/89,231.70
  6. Step 6: Final answer
    x = 54,826.06

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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.