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Finding the Fourth Proportional to 172,726.14, 259,089.21 and 67,471.30

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Solution

The fourth proportional to 172,726.14, 259,089.21 and 67,471.30 is: 101,206.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,726.14 : 259,089.21 = 67,471.30 : x
  2. Step 2: Convert to fraction form
    172,726.14/259,089.21 = 67,471.30/x
  3. Step 3: Cross multiply
    172,726.14x = 259,089.21 × 67,471.30
  4. Step 4: Simplify right side
    172,726.14x = 17,481,085,814.67
  5. Step 5: Solve for x
    x = 17,481,085,814.67/172,726.14
  6. Step 6: Final answer
    x = 101,206.95

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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.