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Finding the Fourth Proportional to 80,452.58, 120,674.94 and 29,861.45

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Solution

The fourth proportional to 80,452.58, 120,674.94 and 29,861.45 is: 44,790.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,452.58 : 120,674.94 = 29,861.45 : x
  2. Step 2: Convert to fraction form
    80,452.58/120,674.94 = 29,861.45/x
  3. Step 3: Cross multiply
    80,452.58x = 120,674.94 × 29,861.45
  4. Step 4: Simplify right side
    80,452.58x = 3,603,528,988.75
  5. Step 5: Solve for x
    x = 3,603,528,988.75/80,452.58
  6. Step 6: Final answer
    x = 44,790.72

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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.