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Finding the Fourth Proportional to 120,668.52, 166,520.01 and 66,952.38

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Solution

The fourth proportional to 120,668.52, 166,520.01 and 66,952.38 is: 92,392.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,668.52 : 166,520.01 = 66,952.38 : x
  2. Step 2: Convert to fraction form
    120,668.52/166,520.01 = 66,952.38/x
  3. Step 3: Cross multiply
    120,668.52x = 166,520.01 × 66,952.38
  4. Step 4: Simplify right side
    120,668.52x = 11,148,910,987.12
  5. Step 5: Solve for x
    x = 11,148,910,987.12/120,668.52
  6. Step 6: Final answer
    x = 92,392.87

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1.5x scale

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.