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Finding the Fourth Proportional to 95,479.56, 143,170.13 and 42,843.94

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Solution

The fourth proportional to 95,479.56, 143,170.13 and 42,843.94 is: 64,243.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,479.56 : 143,170.13 = 42,843.94 : x
  2. Step 2: Convert to fraction form
    95,479.56/143,170.13 = 42,843.94/x
  3. Step 3: Cross multiply
    95,479.56x = 143,170.13 × 42,843.94
  4. Step 4: Simplify right side
    95,479.56x = 6,133,972,208.70
  5. Step 5: Solve for x
    x = 6,133,972,208.70/95,479.56
  6. Step 6: Final answer
    x = 64,243.83

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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.