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Finding the Fourth Proportional to 347,241.80, 479,191.38 and 196,339.40

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Solution

The fourth proportional to 347,241.80, 479,191.38 and 196,339.40 is: 270,947.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,241.80 : 479,191.38 = 196,339.40 : x
  2. Step 2: Convert to fraction form
    347,241.80/479,191.38 = 196,339.40/x
  3. Step 3: Cross multiply
    347,241.80x = 479,191.38 × 196,339.40
  4. Step 4: Simplify right side
    347,241.80x = 94,084,148,034.37
  5. Step 5: Solve for x
    x = 94,084,148,034.37/347,241.80
  6. Step 6: Final answer
    x = 270,947.07

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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.