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Finding the Fourth Proportional to 75,469.88, 113,253.96 and 28,723.16

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Solution

The fourth proportional to 75,469.88, 113,253.96 and 28,723.16 is: 43,103.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,469.88 : 113,253.96 = 28,723.16 : x
  2. Step 2: Convert to fraction form
    75,469.88/113,253.96 = 28,723.16/x
  3. Step 3: Cross multiply
    75,469.88x = 113,253.96 × 28,723.16
  4. Step 4: Simplify right side
    75,469.88x = 3,253,011,613.71
  5. Step 5: Solve for x
    x = 3,253,011,613.71/75,469.88
  6. Step 6: Final answer
    x = 43,103.44

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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.