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Finding the Fourth Proportional to 95,717, 143,576.72 and 33,387.50

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Solution

The fourth proportional to 95,717, 143,576.72 and 33,387.50 is: 50,081.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,717 : 143,576.72 = 33,387.50 : x
  2. Step 2: Convert to fraction form
    95,717/143,576.72 = 33,387.50/x
  3. Step 3: Cross multiply
    95,717x = 143,576.72 × 33,387.50
  4. Step 4: Simplify right side
    95,717x = 4,793,667,739
  5. Step 5: Solve for x
    x = 4,793,667,739/95,717
  6. Step 6: Final answer
    x = 50,081.68

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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.