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Finding the Fourth Proportional to 331,670.67, 457,717.76 and 188,454.97

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Solution

The fourth proportional to 331,670.67, 457,717.76 and 188,454.97 is: 260,074.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,670.67 : 457,717.76 = 188,454.97 : x
  2. Step 2: Convert to fraction form
    331,670.67/457,717.76 = 188,454.97/x
  3. Step 3: Cross multiply
    331,670.67x = 457,717.76 × 188,454.97
  4. Step 4: Simplify right side
    331,670.67x = 86,259,186,729.27
  5. Step 5: Solve for x
    x = 86,259,186,729.27/331,670.67
  6. Step 6: Final answer
    x = 260,074.81

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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.