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Finding the Fourth Proportional to 70,819.74, 106,241.04 and 28,702.44

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Solution

The fourth proportional to 70,819.74, 106,241.04 and 28,702.44 is: 43,058.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,819.74 : 106,241.04 = 28,702.44 : x
  2. Step 2: Convert to fraction form
    70,819.74/106,241.04 = 28,702.44/x
  3. Step 3: Cross multiply
    70,819.74x = 106,241.04 × 28,702.44
  4. Step 4: Simplify right side
    70,819.74x = 3,049,377,076.14
  5. Step 5: Solve for x
    x = 3,049,377,076.14/70,819.74
  6. Step 6: Final answer
    x = 43,058.29

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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.