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Finding the Fourth Proportional to 217,102.92, 325,665.18 and 67,445.16

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Solution

The fourth proportional to 217,102.92, 325,665.18 and 67,445.16 is: 101,171.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,102.92 : 325,665.18 = 67,445.16 : x
  2. Step 2: Convert to fraction form
    217,102.92/325,665.18 = 67,445.16/x
  3. Step 3: Cross multiply
    217,102.92x = 325,665.18 × 67,445.16
  4. Step 4: Simplify right side
    217,102.92x = 21,964,540,171.53
  5. Step 5: Solve for x
    x = 21,964,540,171.53/217,102.92
  6. Step 6: Final answer
    x = 101,171.10

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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.