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Finding the Fourth Proportional to 129,773.80, 194,622.30 and 50,842.60

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Solution

The fourth proportional to 129,773.80, 194,622.30 and 50,842.60 is: 76,248.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,773.80 : 194,622.30 = 50,842.60 : x
  2. Step 2: Convert to fraction form
    129,773.80/194,622.30 = 50,842.60/x
  3. Step 3: Cross multiply
    129,773.80x = 194,622.30 × 50,842.60
  4. Step 4: Simplify right side
    129,773.80x = 9,895,103,749.98
  5. Step 5: Solve for x
    x = 9,895,103,749.98/129,773.80
  6. Step 6: Final answer
    x = 76,248.86

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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.