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Finding the Fourth Proportional to 172,898.44, 259,375.32 and 73,059.60

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Solution

The fourth proportional to 172,898.44, 259,375.32 and 73,059.60 is: 109,601.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,898.44 : 259,375.32 = 73,059.60 : x
  2. Step 2: Convert to fraction form
    172,898.44/259,375.32 = 73,059.60/x
  3. Step 3: Cross multiply
    172,898.44x = 259,375.32 × 73,059.60
  4. Step 4: Simplify right side
    172,898.44x = 18,949,857,129.07
  5. Step 5: Solve for x
    x = 18,949,857,129.07/172,898.44
  6. Step 6: Final answer
    x = 109,601.09

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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.