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Finding the Fourth Proportional to 165,021.99, 227,724.25 and 89,568.87

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Solution

The fourth proportional to 165,021.99, 227,724.25 and 89,568.87 is: 123,601.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,021.99 : 227,724.25 = 89,568.87 : x
  2. Step 2: Convert to fraction form
    165,021.99/227,724.25 = 89,568.87/x
  3. Step 3: Cross multiply
    165,021.99x = 227,724.25 × 89,568.87
  4. Step 4: Simplify right side
    165,021.99x = 20,397,003,744.10
  5. Step 5: Solve for x
    x = 20,397,003,744.10/165,021.99
  6. Step 6: Final answer
    x = 123,601.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.