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Finding the Fourth Proportional to 221,483.55, 332,225.33 and 206,611.95

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Solution

The fourth proportional to 221,483.55, 332,225.33 and 206,611.95 is: 309,917.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,483.55 : 332,225.33 = 206,611.95 : x
  2. Step 2: Convert to fraction form
    221,483.55/332,225.33 = 206,611.95/x
  3. Step 3: Cross multiply
    221,483.55x = 332,225.33 × 206,611.95
  4. Step 4: Simplify right side
    221,483.55x = 68,641,722,237.63
  5. Step 5: Solve for x
    x = 68,641,722,237.63/221,483.55
  6. Step 6: Final answer
    x = 309,917.93

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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.