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Finding the Fourth Proportional to 128,047.05, 192,069.03 and 33,268.85

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Solution

The fourth proportional to 128,047.05, 192,069.03 and 33,268.85 is: 49,902.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,047.05 : 192,069.03 = 33,268.85 : x
  2. Step 2: Convert to fraction form
    128,047.05/192,069.03 = 33,268.85/x
  3. Step 3: Cross multiply
    128,047.05x = 192,069.03 × 33,268.85
  4. Step 4: Simplify right side
    128,047.05x = 6,389,914,788.37
  5. Step 5: Solve for x
    x = 6,389,914,788.37/128,047.05
  6. Step 6: Final answer
    x = 49,902.87

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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.