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Finding the Fourth Proportional to 92,847.57, 139,280.56 and 33,687.85

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Solution

The fourth proportional to 92,847.57, 139,280.56 and 33,687.85 is: 50,535.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,847.57 : 139,280.56 = 33,687.85 : x
  2. Step 2: Convert to fraction form
    92,847.57/139,280.56 = 33,687.85/x
  3. Step 3: Cross multiply
    92,847.57x = 139,280.56 × 33,687.85
  4. Step 4: Simplify right side
    92,847.57x = 4,692,062,631.42
  5. Step 5: Solve for x
    x = 4,692,062,631.42/92,847.57
  6. Step 6: Final answer
    x = 50,535.12

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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.