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Finding the Fourth Proportional to 216,968.63, 325,469.34 and 67,224.03

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Solution

The fourth proportional to 216,968.63, 325,469.34 and 67,224.03 is: 100,841.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,968.63 : 325,469.34 = 67,224.03 : x
  2. Step 2: Convert to fraction form
    216,968.63/325,469.34 = 67,224.03/x
  3. Step 3: Cross multiply
    216,968.63x = 325,469.34 × 67,224.03
  4. Step 4: Simplify right side
    216,968.63x = 21,879,359,455.73
  5. Step 5: Solve for x
    x = 21,879,359,455.73/216,968.63
  6. Step 6: Final answer
    x = 100,841.12

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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.