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Finding the Fourth Proportional to 319,932.88, 479,850.08 and 106,704.56

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Solution

The fourth proportional to 319,932.88, 479,850.08 and 106,704.56 is: 160,040.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,932.88 : 479,850.08 = 106,704.56 : x
  2. Step 2: Convert to fraction form
    319,932.88/479,850.08 = 106,704.56/x
  3. Step 3: Cross multiply
    319,932.88x = 479,850.08 × 106,704.56
  4. Step 4: Simplify right side
    319,932.88x = 51,202,191,652.36
  5. Step 5: Solve for x
    x = 51,202,191,652.36/319,932.88
  6. Step 6: Final answer
    x = 160,040.42

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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.