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Finding the Fourth Proportional to 189,947.70, 284,921.55 and 181,199.70

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Solution

The fourth proportional to 189,947.70, 284,921.55 and 181,199.70 is: 271,799.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,947.70 : 284,921.55 = 181,199.70 : x
  2. Step 2: Convert to fraction form
    189,947.70/284,921.55 = 181,199.70/x
  3. Step 3: Cross multiply
    189,947.70x = 284,921.55 × 181,199.70
  4. Step 4: Simplify right side
    189,947.70x = 51,627,699,383.54
  5. Step 5: Solve for x
    x = 51,627,699,383.54/189,947.70
  6. Step 6: Final answer
    x = 271,799.55

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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.