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Finding the Fourth Proportional to 354,249.12, 531,439.20 and 101,519.04

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Solution

The fourth proportional to 354,249.12, 531,439.20 and 101,519.04 is: 152,297.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,249.12 : 531,439.20 = 101,519.04 : x
  2. Step 2: Convert to fraction form
    354,249.12/531,439.20 = 101,519.04/x
  3. Step 3: Cross multiply
    354,249.12x = 531,439.20 × 101,519.04
  4. Step 4: Simplify right side
    354,249.12x = 53,951,197,402.37
  5. Step 5: Solve for x
    x = 53,951,197,402.37/354,249.12
  6. Step 6: Final answer
    x = 152,297.34

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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.