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Finding the Fourth Proportional to 120,366.48, 166,105.32 and 67,374.48

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Solution

The fourth proportional to 120,366.48, 166,105.32 and 67,374.48 is: 92,976.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,366.48 : 166,105.32 = 67,374.48 : x
  2. Step 2: Convert to fraction form
    120,366.48/166,105.32 = 67,374.48/x
  3. Step 3: Cross multiply
    120,366.48x = 166,105.32 × 67,374.48
  4. Step 4: Simplify right side
    120,366.48x = 11,191,259,560.23
  5. Step 5: Solve for x
    x = 11,191,259,560.23/120,366.48
  6. Step 6: Final answer
    x = 92,976.55

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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.