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Finding the Fourth Proportional to 299,660.74, 449,508.38 and 112,673.86

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Solution

The fourth proportional to 299,660.74, 449,508.38 and 112,673.86 is: 169,017.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,660.74 : 449,508.38 = 112,673.86 : x
  2. Step 2: Convert to fraction form
    299,660.74/449,508.38 = 112,673.86/x
  3. Step 3: Cross multiply
    299,660.74x = 449,508.38 × 112,673.86
  4. Step 4: Simplify right side
    299,660.74x = 50,647,844,276.95
  5. Step 5: Solve for x
    x = 50,647,844,276.95/299,660.74
  6. Step 6: Final answer
    x = 169,017.28

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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.