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Finding the Fourth Proportional to 92,844.80, 139,234.08 and 33,665.12

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Solution

The fourth proportional to 92,844.80, 139,234.08 and 33,665.12 is: 50,485.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,844.80 : 139,234.08 = 33,665.12 : x
  2. Step 2: Convert to fraction form
    92,844.80/139,234.08 = 33,665.12/x
  3. Step 3: Cross multiply
    92,844.80x = 139,234.08 × 33,665.12
  4. Step 4: Simplify right side
    92,844.80x = 4,687,332,011.29
  5. Step 5: Solve for x
    x = 4,687,332,011.29/92,844.80
  6. Step 6: Final answer
    x = 50,485.67

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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.