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Finding the Fourth Proportional to 331,279.84, 457,207.32 and 188,086.24

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Solution

The fourth proportional to 331,279.84, 457,207.32 and 188,086.24 is: 259,582.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,279.84 : 457,207.32 = 188,086.24 : x
  2. Step 2: Convert to fraction form
    331,279.84/457,207.32 = 188,086.24/x
  3. Step 3: Cross multiply
    331,279.84x = 457,207.32 × 188,086.24
  4. Step 4: Simplify right side
    331,279.84x = 85,994,405,719.28
  5. Step 5: Solve for x
    x = 85,994,405,719.28/331,279.84
  6. Step 6: Final answer
    x = 259,582.37

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