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Finding the Fourth Proportional to 73,372.56, 110,123.64 and 40,122.96

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Solution

The fourth proportional to 73,372.56, 110,123.64 and 40,122.96 is: 60,219.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,372.56 : 110,123.64 = 40,122.96 : x
  2. Step 2: Convert to fraction form
    73,372.56/110,123.64 = 40,122.96/x
  3. Step 3: Cross multiply
    73,372.56x = 110,123.64 × 40,122.96
  4. Step 4: Simplify right side
    73,372.56x = 4,418,486,402.77
  5. Step 5: Solve for x
    x = 4,418,486,402.77/73,372.56
  6. Step 6: Final answer
    x = 60,219.88

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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.