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Finding the Fourth Proportional to 71,672.56, 107,521.82 and 29,529.24

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Solution

The fourth proportional to 71,672.56, 107,521.82 and 29,529.24 is: 44,299.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,672.56 : 107,521.82 = 29,529.24 : x
  2. Step 2: Convert to fraction form
    71,672.56/107,521.82 = 29,529.24/x
  3. Step 3: Cross multiply
    71,672.56x = 107,521.82 × 29,529.24
  4. Step 4: Simplify right side
    71,672.56x = 3,175,037,628.02
  5. Step 5: Solve for x
    x = 3,175,037,628.02/71,672.56
  6. Step 6: Final answer
    x = 44,299.21

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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.