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Finding the Fourth Proportional to 357,398.19, 535,939.83 and 167,912.42

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Solution

The fourth proportional to 357,398.19, 535,939.83 and 167,912.42 is: 251,794.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,398.19 : 535,939.83 = 167,912.42 : x
  2. Step 2: Convert to fraction form
    357,398.19/535,939.83 = 167,912.42/x
  3. Step 3: Cross multiply
    357,398.19x = 535,939.83 × 167,912.42
  4. Step 4: Simplify right side
    357,398.19x = 89,990,951,149.99
  5. Step 5: Solve for x
    x = 89,990,951,149.99/357,398.19
  6. Step 6: Final answer
    x = 251,794.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.