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Finding the Fourth Proportional to 92,679.86, 138,861.08 and 50,589.48

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Solution

The fourth proportional to 92,679.86, 138,861.08 and 50,589.48 is: 75,797.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,679.86 : 138,861.08 = 50,589.48 : x
  2. Step 2: Convert to fraction form
    92,679.86/138,861.08 = 50,589.48/x
  3. Step 3: Cross multiply
    92,679.86x = 138,861.08 × 50,589.48
  4. Step 4: Simplify right side
    92,679.86x = 7,024,909,829.44
  5. Step 5: Solve for x
    x = 7,024,909,829.44/92,679.86
  6. Step 6: Final answer
    x = 75,797.59

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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.