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Finding the Fourth Proportional to 325,694.16, 449,458.07 and 198,369.86

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Solution

The fourth proportional to 325,694.16, 449,458.07 and 198,369.86 is: 273,750.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,694.16 : 449,458.07 = 198,369.86 : x
  2. Step 2: Convert to fraction form
    325,694.16/449,458.07 = 198,369.86/x
  3. Step 3: Cross multiply
    325,694.16x = 449,458.07 × 198,369.86
  4. Step 4: Simplify right side
    325,694.16x = 89,158,931,182.63
  5. Step 5: Solve for x
    x = 89,158,931,182.63/325,694.16
  6. Step 6: Final answer
    x = 273,750.48

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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.