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Finding the Fourth Proportional to 313,189.39, 432,202.50 and 169,949.43

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Solution

The fourth proportional to 313,189.39, 432,202.50 and 169,949.43 is: 234,530.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,189.39 : 432,202.50 = 169,949.43 : x
  2. Step 2: Convert to fraction form
    313,189.39/432,202.50 = 169,949.43/x
  3. Step 3: Cross multiply
    313,189.39x = 432,202.50 × 169,949.43
  4. Step 4: Simplify right side
    313,189.39x = 73,452,568,519.58
  5. Step 5: Solve for x
    x = 73,452,568,519.58/313,189.39
  6. Step 6: Final answer
    x = 234,530.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.