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Finding the Fourth Proportional to 111,149.52, 166,673.85 and 47,939.77

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Solution

The fourth proportional to 111,149.52, 166,673.85 and 47,939.77 is: 71,887.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,149.52 : 166,673.85 = 47,939.77 : x
  2. Step 2: Convert to fraction form
    111,149.52/166,673.85 = 47,939.77/x
  3. Step 3: Cross multiply
    111,149.52x = 166,673.85 × 47,939.77
  4. Step 4: Simplify right side
    111,149.52x = 7,990,306,034.01
  5. Step 5: Solve for x
    x = 7,990,306,034.01/111,149.52
  6. Step 6: Final answer
    x = 71,887.90

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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.