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Finding the Fourth Proportional to 221,578.69, 332,340.33 and 61,666.62

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Solution

The fourth proportional to 221,578.69, 332,340.33 and 61,666.62 is: 92,492.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,578.69 : 332,340.33 = 61,666.62 : x
  2. Step 2: Convert to fraction form
    221,578.69/332,340.33 = 61,666.62/x
  3. Step 3: Cross multiply
    221,578.69x = 332,340.33 × 61,666.62
  4. Step 4: Simplify right side
    221,578.69x = 20,494,303,825.76
  5. Step 5: Solve for x
    x = 20,494,303,825.76/221,578.69
  6. Step 6: Final answer
    x = 92,492.22

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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.