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Finding the Fourth Proportional to 78,508.56, 108,361.67 and 44,537.30

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Solution

The fourth proportional to 78,508.56, 108,361.67 and 44,537.30 is: 61,472.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,508.56 : 108,361.67 = 44,537.30 : x
  2. Step 2: Convert to fraction form
    78,508.56/108,361.67 = 44,537.30/x
  3. Step 3: Cross multiply
    78,508.56x = 108,361.67 × 44,537.30
  4. Step 4: Simplify right side
    78,508.56x = 4,826,135,440.80
  5. Step 5: Solve for x
    x = 4,826,135,440.80/78,508.56
  6. Step 6: Final answer
    x = 61,472.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.