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Finding the Fourth Proportional to 113,294.88, 169,999.44 and 80,227.44

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Solution

The fourth proportional to 113,294.88, 169,999.44 and 80,227.44 is: 120,381.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,294.88 : 169,999.44 = 80,227.44 : x
  2. Step 2: Convert to fraction form
    113,294.88/169,999.44 = 80,227.44/x
  3. Step 3: Cross multiply
    113,294.88x = 169,999.44 × 80,227.44
  4. Step 4: Simplify right side
    113,294.88x = 13,638,619,872.63
  5. Step 5: Solve for x
    x = 13,638,619,872.63/113,294.88
  6. Step 6: Final answer
    x = 120,381.61

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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.