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Finding the Fourth Proportional to 319,672.20, 479,454.54 and 117,226.44

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Solution

The fourth proportional to 319,672.20, 479,454.54 and 117,226.44 is: 175,819.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,672.20 : 479,454.54 = 117,226.44 : x
  2. Step 2: Convert to fraction form
    319,672.20/479,454.54 = 117,226.44/x
  3. Step 3: Cross multiply
    319,672.20x = 479,454.54 × 117,226.44
  4. Step 4: Simplify right side
    319,672.20x = 56,204,748,866.04
  5. Step 5: Solve for x
    x = 56,204,748,866.04/319,672.20
  6. Step 6: Final answer
    x = 175,819.95

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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.