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Finding the Fourth Proportional to 356,993.96, 534,761.94 and 199,306.40

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Solution

The fourth proportional to 356,993.96, 534,761.94 and 199,306.40 is: 298,552.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,993.96 : 534,761.94 = 199,306.40 : x
  2. Step 2: Convert to fraction form
    356,993.96/534,761.94 = 199,306.40/x
  3. Step 3: Cross multiply
    356,993.96x = 534,761.94 × 199,306.40
  4. Step 4: Simplify right side
    356,993.96x = 106,581,477,118.42
  5. Step 5: Solve for x
    x = 106,581,477,118.42/356,993.96
  6. Step 6: Final answer
    x = 298,552.61

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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.