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Finding the Fourth Proportional to 79,227.81, 118,842.30 and 20,063.67

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Solution

The fourth proportional to 79,227.81, 118,842.30 and 20,063.67 is: 30,095.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,227.81 : 118,842.30 = 20,063.67 : x
  2. Step 2: Convert to fraction form
    79,227.81/118,842.30 = 20,063.67/x
  3. Step 3: Cross multiply
    79,227.81x = 118,842.30 × 20,063.67
  4. Step 4: Simplify right side
    79,227.81x = 2,384,412,689.24
  5. Step 5: Solve for x
    x = 2,384,412,689.24/79,227.81
  6. Step 6: Final answer
    x = 30,095.65

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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.