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Finding the Fourth Proportional to 120,672.54, 166,528.08 and 66,957.93

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Solution

The fourth proportional to 120,672.54, 166,528.08 and 66,957.93 is: 92,401.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,672.54 : 166,528.08 = 66,957.93 : x
  2. Step 2: Convert to fraction form
    120,672.54/166,528.08 = 66,957.93/x
  3. Step 3: Cross multiply
    120,672.54x = 166,528.08 × 66,957.93
  4. Step 4: Simplify right side
    120,672.54x = 11,150,375,523.67
  5. Step 5: Solve for x
    x = 11,150,375,523.67/120,672.54
  6. Step 6: Final answer
    x = 92,401.93

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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.