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Finding the Fourth Proportional to 80,588.45, 120,840.96 and 36,176.96

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Solution

The fourth proportional to 80,588.45, 120,840.96 and 36,176.96 is: 54,246.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,588.45 : 120,840.96 = 36,176.96 : x
  2. Step 2: Convert to fraction form
    80,588.45/120,840.96 = 36,176.96/x
  3. Step 3: Cross multiply
    80,588.45x = 120,840.96 × 36,176.96
  4. Step 4: Simplify right side
    80,588.45x = 4,371,658,576.28
  5. Step 5: Solve for x
    x = 4,371,658,576.28/80,588.45
  6. Step 6: Final answer
    x = 54,246.71

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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.