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Finding the Fourth Proportional to 223,966.98, 335,997.72 and 74,198.70

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Solution

The fourth proportional to 223,966.98, 335,997.72 and 74,198.70 is: 111,313.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,966.98 : 335,997.72 = 74,198.70 : x
  2. Step 2: Convert to fraction form
    223,966.98/335,997.72 = 74,198.70/x
  3. Step 3: Cross multiply
    223,966.98x = 335,997.72 × 74,198.70
  4. Step 4: Simplify right side
    223,966.98x = 24,930,594,026.96
  5. Step 5: Solve for x
    x = 24,930,594,026.96/223,966.98
  6. Step 6: Final answer
    x = 111,313.70

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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.