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Finding the Fourth Proportional to 196,168.35, 269,862.84 and 171,859.83

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Solution

The fourth proportional to 196,168.35, 269,862.84 and 171,859.83 is: 236,422.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,168.35 : 269,862.84 = 171,859.83 : x
  2. Step 2: Convert to fraction form
    196,168.35/269,862.84 = 171,859.83/x
  3. Step 3: Cross multiply
    196,168.35x = 269,862.84 × 171,859.83
  4. Step 4: Simplify right side
    196,168.35x = 46,378,581,805.72
  5. Step 5: Solve for x
    x = 46,378,581,805.72/196,168.35
  6. Step 6: Final answer
    x = 236,422.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.