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Finding the Fourth Proportional to 217,029.12, 325,525.20 and 67,266

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Solution

The fourth proportional to 217,029.12, 325,525.20 and 67,266 is: 100,893.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,029.12 : 325,525.20 = 67,266 : x
  2. Step 2: Convert to fraction form
    217,029.12/325,525.20 = 67,266/x
  3. Step 3: Cross multiply
    217,029.12x = 325,525.20 × 67,266
  4. Step 4: Simplify right side
    217,029.12x = 21,896,778,103.20
  5. Step 5: Solve for x
    x = 21,896,778,103.20/217,029.12
  6. Step 6: Final answer
    x = 100,893.27

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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.