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Finding the Fourth Proportional to 216,040.20, 323,404.20 and 192,420.60

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Solution

The fourth proportional to 216,040.20, 323,404.20 and 192,420.60 is: 288,046.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,040.20 : 323,404.20 = 192,420.60 : x
  2. Step 2: Convert to fraction form
    216,040.20/323,404.20 = 192,420.60/x
  3. Step 3: Cross multiply
    216,040.20x = 323,404.20 × 192,420.60
  4. Step 4: Simplify right side
    216,040.20x = 62,229,630,206.52
  5. Step 5: Solve for x
    x = 62,229,630,206.52/216,040.20
  6. Step 6: Final answer
    x = 288,046.53

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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.