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Finding the Fourth Proportional to 89,230.70, 133,732.65 and 36,580.70

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Solution

The fourth proportional to 89,230.70, 133,732.65 and 36,580.70 is: 54,824.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,230.70 : 133,732.65 = 36,580.70 : x
  2. Step 2: Convert to fraction form
    89,230.70/133,732.65 = 36,580.70/x
  3. Step 3: Cross multiply
    89,230.70x = 133,732.65 × 36,580.70
  4. Step 4: Simplify right side
    89,230.70x = 4,892,033,949.86
  5. Step 5: Solve for x
    x = 4,892,033,949.86/89,230.70
  6. Step 6: Final answer
    x = 54,824.56

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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.