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Finding the Fourth Proportional to 325,632.99, 449,387.33 and 189,645.03

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Solution

The fourth proportional to 325,632.99, 449,387.33 and 189,645.03 is: 261,718.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,632.99 : 449,387.33 = 189,645.03 : x
  2. Step 2: Convert to fraction form
    325,632.99/449,387.33 = 189,645.03/x
  3. Step 3: Cross multiply
    325,632.99x = 449,387.33 × 189,645.03
  4. Step 4: Simplify right side
    325,632.99x = 85,224,073,679.47
  5. Step 5: Solve for x
    x = 85,224,073,679.47/325,632.99
  6. Step 6: Final answer
    x = 261,718.18

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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.