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Finding the Fourth Proportional to 112,668.44, 155,471.94 and 67,337.48

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Solution

The fourth proportional to 112,668.44, 155,471.94 and 67,337.48 is: 92,919.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,668.44 : 155,471.94 = 67,337.48 : x
  2. Step 2: Convert to fraction form
    112,668.44/155,471.94 = 67,337.48/x
  3. Step 3: Cross multiply
    112,668.44x = 155,471.94 × 67,337.48
  4. Step 4: Simplify right side
    112,668.44x = 10,469,088,650.31
  5. Step 5: Solve for x
    x = 10,469,088,650.31/112,668.44
  6. Step 6: Final answer
    x = 92,919.44

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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.