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Finding the Fourth Proportional to 172,375.94, 258,499.90 and 60,027.32

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Solution

The fourth proportional to 172,375.94, 258,499.90 and 60,027.32 is: 90,018.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,375.94 : 258,499.90 = 60,027.32 : x
  2. Step 2: Convert to fraction form
    172,375.94/258,499.90 = 60,027.32/x
  3. Step 3: Cross multiply
    172,375.94x = 258,499.90 × 60,027.32
  4. Step 4: Simplify right side
    172,375.94x = 15,517,056,217.27
  5. Step 5: Solve for x
    x = 15,517,056,217.27/172,375.94
  6. Step 6: Final answer
    x = 90,018.69

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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.