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Finding the Fourth Proportional to 89,169.46, 133,761.47 and 36,579.40

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Solution

The fourth proportional to 89,169.46, 133,761.47 and 36,579.40 is: 54,872.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,169.46 : 133,761.47 = 36,579.40 : x
  2. Step 2: Convert to fraction form
    89,169.46/133,761.47 = 36,579.40/x
  3. Step 3: Cross multiply
    89,169.46x = 133,761.47 × 36,579.40
  4. Step 4: Simplify right side
    89,169.46x = 4,892,914,315.72
  5. Step 5: Solve for x
    x = 4,892,914,315.72/89,169.46
  6. Step 6: Final answer
    x = 54,872.09

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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.