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Finding the Fourth Proportional to 45,650.40, 68,378.40 and 37,874.40

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Solution

The fourth proportional to 45,650.40, 68,378.40 and 37,874.40 is: 56,730.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,650.40 : 68,378.40 = 37,874.40 : x
  2. Step 2: Convert to fraction form
    45,650.40/68,378.40 = 37,874.40/x
  3. Step 3: Cross multiply
    45,650.40x = 68,378.40 × 37,874.40
  4. Step 4: Simplify right side
    45,650.40x = 2,589,790,872.96
  5. Step 5: Solve for x
    x = 2,589,790,872.96/45,650.40
  6. Step 6: Final answer
    x = 56,730.96

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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.