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Finding the Fourth Proportional to 350,872.18, 484,203.26 and 189,726.86

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Solution

The fourth proportional to 350,872.18, 484,203.26 and 189,726.86 is: 261,822.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,872.18 : 484,203.26 = 189,726.86 : x
  2. Step 2: Convert to fraction form
    350,872.18/484,203.26 = 189,726.86/x
  3. Step 3: Cross multiply
    350,872.18x = 484,203.26 × 189,726.86
  4. Step 4: Simplify right side
    350,872.18x = 91,866,364,121.56
  5. Step 5: Solve for x
    x = 91,866,364,121.56/350,872.18
  6. Step 6: Final answer
    x = 261,822.88

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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.