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Finding the Fourth Proportional to 299,506.60, 449,195.10 and 131,026.60

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Solution

The fourth proportional to 299,506.60, 449,195.10 and 131,026.60 is: 196,511.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,506.60 : 449,195.10 = 131,026.60 : x
  2. Step 2: Convert to fraction form
    299,506.60/449,195.10 = 131,026.60/x
  3. Step 3: Cross multiply
    299,506.60x = 449,195.10 × 131,026.60
  4. Step 4: Simplify right side
    299,506.60x = 58,856,506,689.66
  5. Step 5: Solve for x
    x = 58,856,506,689.66/299,506.60
  6. Step 6: Final answer
    x = 196,511.55

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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.