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Finding the Fourth Proportional to 196,690,090.65, 275,769,234.75 and 196,690,090.65

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Solution

The fourth proportional to 196,690,090.65, 275,769,234.75 and 196,690,090.65 is: 275,769,234.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,690,090.65 : 275,769,234.75 = 196,690,090.65 : x
  2. Step 2: Convert to fraction form
    196,690,090.65/275,769,234.75 = 196,690,090.65/x
  3. Step 3: Cross multiply
    196,690,090.65x = 275,769,234.75 × 196,690,090.65
  4. Step 4: Simplify right side
    196,690,090.65x = 54,241,075,781,458,632
  5. Step 5: Solve for x
    x = 54,241,075,781,458,632/196,690,090.65
  6. Step 6: Final answer
    x = 275,769,234.75

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.