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Finding the Fourth Proportional to 111,940.40, 167,910.60 and 28,834.40

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Solution

The fourth proportional to 111,940.40, 167,910.60 and 28,834.40 is: 43,251.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,940.40 : 167,910.60 = 28,834.40 : x
  2. Step 2: Convert to fraction form
    111,940.40/167,910.60 = 28,834.40/x
  3. Step 3: Cross multiply
    111,940.40x = 167,910.60 × 28,834.40
  4. Step 4: Simplify right side
    111,940.40x = 4,841,601,404.64
  5. Step 5: Solve for x
    x = 4,841,601,404.64/111,940.40
  6. Step 6: Final answer
    x = 43,251.60

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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.