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Finding the Fourth Proportional to 113,604.70, 156,786.15 and 68,297.44

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Solution

The fourth proportional to 113,604.70, 156,786.15 and 68,297.44 is: 94,257.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,604.70 : 156,786.15 = 68,297.44 : x
  2. Step 2: Convert to fraction form
    113,604.70/156,786.15 = 68,297.44/x
  3. Step 3: Cross multiply
    113,604.70x = 156,786.15 × 68,297.44
  4. Step 4: Simplify right side
    113,604.70x = 10,708,092,672.46
  5. Step 5: Solve for x
    x = 10,708,092,672.46/113,604.70
  6. Step 6: Final answer
    x = 94,257.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.