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Finding the Fourth Proportional to 193,846,369.80, 290,769,554.70 and 71,024,449.80

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Solution

The fourth proportional to 193,846,369.80, 290,769,554.70 and 71,024,449.80 is: 106,536,674.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,846,369.80 : 290,769,554.70 = 71,024,449.80 : x
  2. Step 2: Convert to fraction form
    193,846,369.80/290,769,554.70 = 71,024,449.80/x
  3. Step 3: Cross multiply
    193,846,369.80x = 290,769,554.70 × 71,024,449.80
  4. Step 4: Simplify right side
    193,846,369.80x = 20,651,747,641,158,504
  5. Step 5: Solve for x
    x = 20,651,747,641,158,504/193,846,369.80
  6. Step 6: Final answer
    x = 106,536,674.70

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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.