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Finding the Fourth Proportional to 325,864.51, 449,608.59 and 196,700.90

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Solution

The fourth proportional to 325,864.51, 449,608.59 and 196,700.90 is: 271,396.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,864.51 : 449,608.59 = 196,700.90 : x
  2. Step 2: Convert to fraction form
    325,864.51/449,608.59 = 196,700.90/x
  3. Step 3: Cross multiply
    325,864.51x = 449,608.59 × 196,700.90
  4. Step 4: Simplify right side
    325,864.51x = 88,438,412,052.69
  5. Step 5: Solve for x
    x = 88,438,412,052.69/325,864.51
  6. Step 6: Final answer
    x = 271,396.27

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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.