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Finding the Fourth Proportional to 92,979.36, 139,425.12 and 33,773.76

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Solution

The fourth proportional to 92,979.36, 139,425.12 and 33,773.76 is: 50,644.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,979.36 : 139,425.12 = 33,773.76 : x
  2. Step 2: Convert to fraction form
    92,979.36/139,425.12 = 33,773.76/x
  3. Step 3: Cross multiply
    92,979.36x = 139,425.12 × 33,773.76
  4. Step 4: Simplify right side
    92,979.36x = 4,708,910,540.85
  5. Step 5: Solve for x
    x = 4,708,910,540.85/92,979.36
  6. Step 6: Final answer
    x = 50,644.69

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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.