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Finding the Fourth Proportional to 99,956.44, 137,938.26 and 54,633.88

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Solution

The fourth proportional to 99,956.44, 137,938.26 and 54,633.88 is: 75,393.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,956.44 : 137,938.26 = 54,633.88 : x
  2. Step 2: Convert to fraction form
    99,956.44/137,938.26 = 54,633.88/x
  3. Step 3: Cross multiply
    99,956.44x = 137,938.26 × 54,633.88
  4. Step 4: Simplify right side
    99,956.44x = 7,536,102,344.25
  5. Step 5: Solve for x
    x = 7,536,102,344.25/99,956.44
  6. Step 6: Final answer
    x = 75,393.87

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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.