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Finding the Fourth Proportional to 217,076.43, 325,645.23 and 67,328.90

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Solution

The fourth proportional to 217,076.43, 325,645.23 and 67,328.90 is: 101,002.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,076.43 : 325,645.23 = 67,328.90 : x
  2. Step 2: Convert to fraction form
    217,076.43/325,645.23 = 67,328.90/x
  3. Step 3: Cross multiply
    217,076.43x = 325,645.23 × 67,328.90
  4. Step 4: Simplify right side
    217,076.43x = 21,925,333,161.28
  5. Step 5: Solve for x
    x = 21,925,333,161.28/217,076.43
  6. Step 6: Final answer
    x = 101,002.83

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1.5x scale

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.