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Finding the Fourth Proportional to 92,750.96, 139,110.26 and 42,826.80

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Solution

The fourth proportional to 92,750.96, 139,110.26 and 42,826.80 is: 64,232.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,750.96 : 139,110.26 = 42,826.80 : x
  2. Step 2: Convert to fraction form
    92,750.96/139,110.26 = 42,826.80/x
  3. Step 3: Cross multiply
    92,750.96x = 139,110.26 × 42,826.80
  4. Step 4: Simplify right side
    92,750.96x = 5,957,647,282.97
  5. Step 5: Solve for x
    x = 5,957,647,282.97/92,750.96
  6. Step 6: Final answer
    x = 64,232.73

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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.