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Finding the Fourth Proportional to 71,950.03, 107,956.20 and 38,631.22

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Solution

The fourth proportional to 71,950.03, 107,956.20 and 38,631.22 is: 57,963.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,950.03 : 107,956.20 = 38,631.22 : x
  2. Step 2: Convert to fraction form
    71,950.03/107,956.20 = 38,631.22/x
  3. Step 3: Cross multiply
    71,950.03x = 107,956.20 × 38,631.22
  4. Step 4: Simplify right side
    71,950.03x = 4,170,479,712.56
  5. Step 5: Solve for x
    x = 4,170,479,712.56/71,950.03
  6. Step 6: Final answer
    x = 57,963.56

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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.