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Finding the Fourth Proportional to 205,738.30, 288,230.45 and 205,738.30

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Solution

The fourth proportional to 205,738.30, 288,230.45 and 205,738.30 is: 288,230.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,738.30 : 288,230.45 = 205,738.30 : x
  2. Step 2: Convert to fraction form
    205,738.30/288,230.45 = 205,738.30/x
  3. Step 3: Cross multiply
    205,738.30x = 288,230.45 × 205,738.30
  4. Step 4: Simplify right side
    205,738.30x = 59,300,042,791.24
  5. Step 5: Solve for x
    x = 59,300,042,791.24/205,738.30
  6. Step 6: Final answer
    x = 288,230.45

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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.