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Finding the Fourth Proportional to 98,523.43, 147,805.90 and 31,958.37

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Solution

The fourth proportional to 98,523.43, 147,805.90 and 31,958.37 is: 47,944.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,523.43 : 147,805.90 = 31,958.37 : x
  2. Step 2: Convert to fraction form
    98,523.43/147,805.90 = 31,958.37/x
  3. Step 3: Cross multiply
    98,523.43x = 147,805.90 × 31,958.37
  4. Step 4: Simplify right side
    98,523.43x = 4,723,635,640.38
  5. Step 5: Solve for x
    x = 4,723,635,640.38/98,523.43
  6. Step 6: Final answer
    x = 47,944.29

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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.