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Finding the Fourth Proportional to 373,279.20, 559,918.80 and 123,961.20

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Solution

The fourth proportional to 373,279.20, 559,918.80 and 123,961.20 is: 185,941.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,279.20 : 559,918.80 = 123,961.20 : x
  2. Step 2: Convert to fraction form
    373,279.20/559,918.80 = 123,961.20/x
  3. Step 3: Cross multiply
    373,279.20x = 559,918.80 × 123,961.20
  4. Step 4: Simplify right side
    373,279.20x = 69,408,206,350.56
  5. Step 5: Solve for x
    x = 69,408,206,350.56/373,279.20
  6. Step 6: Final answer
    x = 185,941.80

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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.