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Finding the Fourth Proportional to 216,442.33, 324,736.40 and 136,387.33

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Solution

The fourth proportional to 216,442.33, 324,736.40 and 136,387.33 is: 204,626.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,442.33 : 324,736.40 = 136,387.33 : x
  2. Step 2: Convert to fraction form
    216,442.33/324,736.40 = 136,387.33/x
  3. Step 3: Cross multiply
    216,442.33x = 324,736.40 × 136,387.33
  4. Step 4: Simplify right side
    216,442.33x = 44,289,929,867.88
  5. Step 5: Solve for x
    x = 44,289,929,867.88/216,442.33
  6. Step 6: Final answer
    x = 204,626.93

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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.