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Finding the Fourth Proportional to 313,245.20, 469,090.20 and 251,037.20

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Solution

The fourth proportional to 313,245.20, 469,090.20 and 251,037.20 is: 375,932.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,245.20 : 469,090.20 = 251,037.20 : x
  2. Step 2: Convert to fraction form
    313,245.20/469,090.20 = 251,037.20/x
  3. Step 3: Cross multiply
    313,245.20x = 469,090.20 × 251,037.20
  4. Step 4: Simplify right side
    313,245.20x = 117,759,090,355.44
  5. Step 5: Solve for x
    x = 117,759,090,355.44/313,245.20
  6. Step 6: Final answer
    x = 375,932.63

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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.