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Finding the Fourth Proportional to 80,666.73, 111,315.50 and 44,855.96

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Solution

The fourth proportional to 80,666.73, 111,315.50 and 44,855.96 is: 61,898.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,666.73 : 111,315.50 = 44,855.96 : x
  2. Step 2: Convert to fraction form
    80,666.73/111,315.50 = 44,855.96/x
  3. Step 3: Cross multiply
    80,666.73x = 111,315.50 × 44,855.96
  4. Step 4: Simplify right side
    80,666.73x = 4,993,163,669.39
  5. Step 5: Solve for x
    x = 4,993,163,669.39/80,666.73
  6. Step 6: Final answer
    x = 61,898.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.