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Finding the Fourth Proportional to 122,628.33, 183,940.65 and 33,879.87

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Solution

The fourth proportional to 122,628.33, 183,940.65 and 33,879.87 is: 50,819.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,628.33 : 183,940.65 = 33,879.87 : x
  2. Step 2: Convert to fraction form
    122,628.33/183,940.65 = 33,879.87/x
  3. Step 3: Cross multiply
    122,628.33x = 183,940.65 × 33,879.87
  4. Step 4: Simplify right side
    122,628.33x = 6,231,885,309.72
  5. Step 5: Solve for x
    x = 6,231,885,309.72/122,628.33
  6. Step 6: Final answer
    x = 50,819.30

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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.