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Finding the Fourth Proportional to 172,786.16, 259,211.92 and 67,598.48

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Solution

The fourth proportional to 172,786.16, 259,211.92 and 67,598.48 is: 101,410.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,786.16 : 259,211.92 = 67,598.48 : x
  2. Step 2: Convert to fraction form
    172,786.16/259,211.92 = 67,598.48/x
  3. Step 3: Cross multiply
    172,786.16x = 259,211.92 × 67,598.48
  4. Step 4: Simplify right side
    172,786.16x = 17,522,331,789.88
  5. Step 5: Solve for x
    x = 17,522,331,789.88/172,786.16
  6. Step 6: Final answer
    x = 101,410.51

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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.