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Finding the Fourth Proportional to 89,168.46, 133,759.97 and 36,578.40

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Solution

The fourth proportional to 89,168.46, 133,759.97 and 36,578.40 is: 54,870.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,168.46 : 133,759.97 = 36,578.40 : x
  2. Step 2: Convert to fraction form
    89,168.46/133,759.97 = 36,578.40/x
  3. Step 3: Cross multiply
    89,168.46x = 133,759.97 × 36,578.40
  4. Step 4: Simplify right side
    89,168.46x = 4,892,725,686.65
  5. Step 5: Solve for x
    x = 4,892,725,686.65/89,168.46
  6. Step 6: Final answer
    x = 54,870.59

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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.