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Finding the Fourth Proportional to 217,196.96, 325,846.47 and 67,429.58

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Solution

The fourth proportional to 217,196.96, 325,846.47 and 67,429.58 is: 101,160.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,196.96 : 325,846.47 = 67,429.58 : x
  2. Step 2: Convert to fraction form
    217,196.96/325,846.47 = 67,429.58/x
  3. Step 3: Cross multiply
    217,196.96x = 325,846.47 × 67,429.58
  4. Step 4: Simplify right side
    217,196.96x = 21,971,690,616.58
  5. Step 5: Solve for x
    x = 21,971,690,616.58/217,196.96
  6. Step 6: Final answer
    x = 101,160.21

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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.