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Finding the Fourth Proportional to 331,347.88, 457,276.26 and 188,105.32

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Solution

The fourth proportional to 331,347.88, 457,276.26 and 188,105.32 is: 259,594.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,347.88 : 457,276.26 = 188,105.32 : x
  2. Step 2: Convert to fraction form
    331,347.88/457,276.26 = 188,105.32/x
  3. Step 3: Cross multiply
    331,347.88x = 457,276.26 × 188,105.32
  4. Step 4: Simplify right side
    331,347.88x = 86,016,097,215.70
  5. Step 5: Solve for x
    x = 86,016,097,215.70/331,347.88
  6. Step 6: Final answer
    x = 259,594.53

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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.