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Finding the Fourth Proportional to 299,671.40, 449,572.74 and 112,682.90

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Solution

The fourth proportional to 299,671.40, 449,572.74 and 112,682.90 is: 169,049.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,671.40 : 449,572.74 = 112,682.90 : x
  2. Step 2: Convert to fraction form
    299,671.40/449,572.74 = 112,682.90/x
  3. Step 3: Cross multiply
    299,671.40x = 449,572.74 × 112,682.90
  4. Step 4: Simplify right side
    299,671.40x = 50,659,160,104.15
  5. Step 5: Solve for x
    x = 50,659,160,104.15/299,671.40
  6. Step 6: Final answer
    x = 169,049.03

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1.5x scale

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.