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Finding the Fourth Proportional to 206,075.39, 309,157.36 and 63,917.69

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Solution

The fourth proportional to 206,075.39, 309,157.36 and 63,917.69 is: 95,890.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,075.39 : 309,157.36 = 63,917.69 : x
  2. Step 2: Convert to fraction form
    206,075.39/309,157.36 = 63,917.69/x
  3. Step 3: Cross multiply
    206,075.39x = 309,157.36 × 63,917.69
  4. Step 4: Simplify right side
    206,075.39x = 19,760,622,592.12
  5. Step 5: Solve for x
    x = 19,760,622,592.12/206,075.39
  6. Step 6: Final answer
    x = 95,890.26

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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.