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Finding the Fourth Proportional to 217,077.43, 325,646.73 and 67,329.90

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Solution

The fourth proportional to 217,077.43, 325,646.73 and 67,329.90 is: 101,004.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,077.43 : 325,646.73 = 67,329.90 : x
  2. Step 2: Convert to fraction form
    217,077.43/325,646.73 = 67,329.90/x
  3. Step 3: Cross multiply
    217,077.43x = 325,646.73 × 67,329.90
  4. Step 4: Simplify right side
    217,077.43x = 21,925,761,766.23
  5. Step 5: Solve for x
    x = 21,925,761,766.23/217,077.43
  6. Step 6: Final answer
    x = 101,004.34

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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.