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Finding the Fourth Proportional to 496,108.80, 744,161.76 and 136,279.98

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Solution

The fourth proportional to 496,108.80, 744,161.76 and 136,279.98 is: 204,419.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,108.80 : 744,161.76 = 136,279.98 : x
  2. Step 2: Convert to fraction form
    496,108.80/744,161.76 = 136,279.98/x
  3. Step 3: Cross multiply
    496,108.80x = 744,161.76 × 136,279.98
  4. Step 4: Simplify right side
    496,108.80x = 101,414,349,769.57
  5. Step 5: Solve for x
    x = 101,414,349,769.57/496,108.80
  6. Step 6: Final answer
    x = 204,419.57

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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.