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Finding the Fourth Proportional to 150,818.96, 225,883.92 and 71,988.68

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Solution

The fourth proportional to 150,818.96, 225,883.92 and 71,988.68 is: 107,818.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,818.96 : 225,883.92 = 71,988.68 : x
  2. Step 2: Convert to fraction form
    150,818.96/225,883.92 = 71,988.68/x
  3. Step 3: Cross multiply
    150,818.96x = 225,883.92 × 71,988.68
  4. Step 4: Simplify right side
    150,818.96x = 16,261,085,234.03
  5. Step 5: Solve for x
    x = 16,261,085,234.03/150,818.96
  6. Step 6: Final answer
    x = 107,818.57

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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.