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Finding the Fourth Proportional to 236,404.80, 354,218.40 and 196,747.20

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Solution

The fourth proportional to 236,404.80, 354,218.40 and 196,747.20 is: 294,797.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,404.80 : 354,218.40 = 196,747.20 : x
  2. Step 2: Convert to fraction form
    236,404.80/354,218.40 = 196,747.20/x
  3. Step 3: Cross multiply
    236,404.80x = 354,218.40 × 196,747.20
  4. Step 4: Simplify right side
    236,404.80x = 69,691,478,388.48
  5. Step 5: Solve for x
    x = 69,691,478,388.48/236,404.80
  6. Step 6: Final answer
    x = 294,797.22

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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.