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Finding the Fourth Proportional to 89,435.34, 134,179.84 and 36,099.88

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Solution

The fourth proportional to 89,435.34, 134,179.84 and 36,099.88 is: 54,160.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,435.34 : 134,179.84 = 36,099.88 : x
  2. Step 2: Convert to fraction form
    89,435.34/134,179.84 = 36,099.88/x
  3. Step 3: Cross multiply
    89,435.34x = 134,179.84 × 36,099.88
  4. Step 4: Simplify right side
    89,435.34x = 4,843,876,122.42
  5. Step 5: Solve for x
    x = 4,843,876,122.42/89,435.34
  6. Step 6: Final answer
    x = 54,160.65

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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.