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Finding the Fourth Proportional to 78,658.44, 108,540.55 and 44,197.70

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Solution

The fourth proportional to 78,658.44, 108,540.55 and 44,197.70 is: 60,988.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,658.44 : 108,540.55 = 44,197.70 : x
  2. Step 2: Convert to fraction form
    78,658.44/108,540.55 = 44,197.70/x
  3. Step 3: Cross multiply
    78,658.44x = 108,540.55 × 44,197.70
  4. Step 4: Simplify right side
    78,658.44x = 4,797,242,096.41
  5. Step 5: Solve for x
    x = 4,797,242,096.41/78,658.44
  6. Step 6: Final answer
    x = 60,988.27

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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.