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Finding the Fourth Proportional to 122,604.48, 169,271.64 and 80,234.64

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Solution

The fourth proportional to 122,604.48, 169,271.64 and 80,234.64 is: 110,774.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,604.48 : 169,271.64 = 80,234.64 : x
  2. Step 2: Convert to fraction form
    122,604.48/169,271.64 = 80,234.64/x
  3. Step 3: Cross multiply
    122,604.48x = 169,271.64 × 80,234.64
  4. Step 4: Simplify right side
    122,604.48x = 13,581,449,097.61
  5. Step 5: Solve for x
    x = 13,581,449,097.61/122,604.48
  6. Step 6: Final answer
    x = 110,774.49

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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.