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Finding the Fourth Proportional to 95,347.26, 142,993.62 and 38,421

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Solution

The fourth proportional to 95,347.26, 142,993.62 and 38,421 is: 57,620.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,347.26 : 142,993.62 = 38,421 : x
  2. Step 2: Convert to fraction form
    95,347.26/142,993.62 = 38,421/x
  3. Step 3: Cross multiply
    95,347.26x = 142,993.62 × 38,421
  4. Step 4: Simplify right side
    95,347.26x = 5,493,957,874.02
  5. Step 5: Solve for x
    x = 5,493,957,874.02/95,347.26
  6. Step 6: Final answer
    x = 57,620.51

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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.