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Finding the Fourth Proportional to 122,267.44, 168,764.34 and 79,245.46

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Solution

The fourth proportional to 122,267.44, 168,764.34 and 79,245.46 is: 109,381.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,267.44 : 168,764.34 = 79,245.46 : x
  2. Step 2: Convert to fraction form
    122,267.44/168,764.34 = 79,245.46/x
  3. Step 3: Cross multiply
    122,267.44x = 168,764.34 × 79,245.46
  4. Step 4: Simplify right side
    122,267.44x = 13,373,807,754.90
  5. Step 5: Solve for x
    x = 13,373,807,754.90/122,267.44
  6. Step 6: Final answer
    x = 109,381.60

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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.