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Finding the Fourth Proportional to 172,734.62, 259,044.05 and 66,093.77

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Solution

The fourth proportional to 172,734.62, 259,044.05 and 66,093.77 is: 99,118.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,734.62 : 259,044.05 = 66,093.77 : x
  2. Step 2: Convert to fraction form
    172,734.62/259,044.05 = 66,093.77/x
  3. Step 3: Cross multiply
    172,734.62x = 259,044.05 × 66,093.77
  4. Step 4: Simplify right side
    172,734.62x = 17,121,198,673.41
  5. Step 5: Solve for x
    x = 17,121,198,673.41/172,734.62
  6. Step 6: Final answer
    x = 99,118.52

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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.