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Finding the Fourth Proportional to 92,799.96, 139,198.73 and 22,679.88

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Solution

The fourth proportional to 92,799.96, 139,198.73 and 22,679.88 is: 34,019.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,799.96 : 139,198.73 = 22,679.88 : x
  2. Step 2: Convert to fraction form
    92,799.96/139,198.73 = 22,679.88/x
  3. Step 3: Cross multiply
    92,799.96x = 139,198.73 × 22,679.88
  4. Step 4: Simplify right side
    92,799.96x = 3,157,010,379.15
  5. Step 5: Solve for x
    x = 3,157,010,379.15/92,799.96
  6. Step 6: Final answer
    x = 34,019.52

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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.