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Finding the Fourth Proportional to 216,840.33, 325,121.72 and 104,296.43

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Solution

The fourth proportional to 216,840.33, 325,121.72 and 104,296.43 is: 156,377.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,840.33 : 325,121.72 = 104,296.43 : x
  2. Step 2: Convert to fraction form
    216,840.33/325,121.72 = 104,296.43/x
  3. Step 3: Cross multiply
    216,840.33x = 325,121.72 × 104,296.43
  4. Step 4: Simplify right side
    216,840.33x = 33,909,035,002.78
  5. Step 5: Solve for x
    x = 33,909,035,002.78/216,840.33
  6. Step 6: Final answer
    x = 156,377.90

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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.