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Finding the Fourth Proportional to 172,926.08, 259,456.80 and 67,726.88

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Solution

The fourth proportional to 172,926.08, 259,456.80 and 67,726.88 is: 101,616.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,926.08 : 259,456.80 = 67,726.88 : x
  2. Step 2: Convert to fraction form
    172,926.08/259,456.80 = 67,726.88/x
  3. Step 3: Cross multiply
    172,926.08x = 259,456.80 × 67,726.88
  4. Step 4: Simplify right side
    172,926.08x = 17,572,199,558.78
  5. Step 5: Solve for x
    x = 17,572,199,558.78/172,926.08
  6. Step 6: Final answer
    x = 101,616.83

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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.