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Finding the Fourth Proportional to 172,876.25, 259,416.44 and 73,029.98

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Solution

The fourth proportional to 172,876.25, 259,416.44 and 73,029.98 is: 109,588.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,876.25 : 259,416.44 = 73,029.98 : x
  2. Step 2: Convert to fraction form
    172,876.25/259,416.44 = 73,029.98/x
  3. Step 3: Cross multiply
    172,876.25x = 259,416.44 × 73,029.98
  4. Step 4: Simplify right side
    172,876.25x = 18,945,177,424.87
  5. Step 5: Solve for x
    x = 18,945,177,424.87/172,876.25
  6. Step 6: Final answer
    x = 109,588.09

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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.