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Finding the Fourth Proportional to 112,000.44, 167,981.22 and 38,128.44

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Solution

The fourth proportional to 112,000.44, 167,981.22 and 38,128.44 is: 57,186.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,000.44 : 167,981.22 = 38,128.44 : x
  2. Step 2: Convert to fraction form
    112,000.44/167,981.22 = 38,128.44/x
  3. Step 3: Cross multiply
    112,000.44x = 167,981.22 × 38,128.44
  4. Step 4: Simplify right side
    112,000.44x = 6,404,861,867.90
  5. Step 5: Solve for x
    x = 6,404,861,867.90/112,000.44
  6. Step 6: Final answer
    x = 57,186.04

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1.5x scale

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.