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Finding the Fourth Proportional to 199,113.30, 298,825.47 and 74,489.94

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Solution

The fourth proportional to 199,113.30, 298,825.47 and 74,489.94 is: 111,793.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,113.30 : 298,825.47 = 74,489.94 : x
  2. Step 2: Convert to fraction form
    199,113.30/298,825.47 = 74,489.94/x
  3. Step 3: Cross multiply
    199,113.30x = 298,825.47 × 74,489.94
  4. Step 4: Simplify right side
    199,113.30x = 22,259,491,330.77
  5. Step 5: Solve for x
    x = 22,259,491,330.77/199,113.30
  6. Step 6: Final answer
    x = 111,793.09

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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.