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Finding the Fourth Proportional to 92,889.73, 139,333.85 and 55,200.20

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Solution

The fourth proportional to 92,889.73, 139,333.85 and 55,200.20 is: 82,799.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,889.73 : 139,333.85 = 55,200.20 : x
  2. Step 2: Convert to fraction form
    92,889.73/139,333.85 = 55,200.20/x
  3. Step 3: Cross multiply
    92,889.73x = 139,333.85 × 55,200.20
  4. Step 4: Simplify right side
    92,889.73x = 7,691,256,143.60
  5. Step 5: Solve for x
    x = 7,691,256,143.60/92,889.73
  6. Step 6: Final answer
    x = 82,799.86

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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.