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Finding the Fourth Proportional to 203,279.20, 304,525.13 and 98,171.98

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Solution

The fourth proportional to 203,279.20, 304,525.13 and 98,171.98 is: 147,067.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,279.20 : 304,525.13 = 98,171.98 : x
  2. Step 2: Convert to fraction form
    203,279.20/304,525.13 = 98,171.98/x
  3. Step 3: Cross multiply
    203,279.20x = 304,525.13 × 98,171.98
  4. Step 4: Simplify right side
    203,279.20x = 29,895,834,971.86
  5. Step 5: Solve for x
    x = 29,895,834,971.86/203,279.20
  6. Step 6: Final answer
    x = 147,067.85

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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.