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Finding the Fourth Proportional to 216,962.43, 325,474.56 and 67,214.49

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Solution

The fourth proportional to 216,962.43, 325,474.56 and 67,214.49 is: 100,831.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,962.43 : 325,474.56 = 67,214.49 : x
  2. Step 2: Convert to fraction form
    216,962.43/325,474.56 = 67,214.49/x
  3. Step 3: Cross multiply
    216,962.43x = 325,474.56 × 67,214.49
  4. Step 4: Simplify right side
    216,962.43x = 21,876,606,558.37
  5. Step 5: Solve for x
    x = 21,876,606,558.37/216,962.43
  6. Step 6: Final answer
    x = 100,831.31

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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.