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Finding the Fourth Proportional to 331,444.56, 457,396.62 and 188,207.61

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Solution

The fourth proportional to 331,444.56, 457,396.62 and 188,207.61 is: 259,728.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,444.56 : 457,396.62 = 188,207.61 : x
  2. Step 2: Convert to fraction form
    331,444.56/457,396.62 = 188,207.61/x
  3. Step 3: Cross multiply
    331,444.56x = 457,396.62 × 188,207.61
  4. Step 4: Simplify right side
    331,444.56x = 86,085,524,672.28
  5. Step 5: Solve for x
    x = 86,085,524,672.28/331,444.56
  6. Step 6: Final answer
    x = 259,728.28

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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.