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Finding the Fourth Proportional to 122,226.44, 168,672.84 and 67,782.43

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Solution

The fourth proportional to 122,226.44, 168,672.84 and 67,782.43 is: 93,539.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,226.44 : 168,672.84 = 67,782.43 : x
  2. Step 2: Convert to fraction form
    122,226.44/168,672.84 = 67,782.43/x
  3. Step 3: Cross multiply
    122,226.44x = 168,672.84 × 67,782.43
  4. Step 4: Simplify right side
    122,226.44x = 11,433,054,926.86
  5. Step 5: Solve for x
    x = 11,433,054,926.86/122,226.44
  6. Step 6: Final answer
    x = 93,539.95

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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.