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Finding the Fourth Proportional to 205,555.45, 308,366.42 and 63,367.46

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Solution

The fourth proportional to 205,555.45, 308,366.42 and 63,367.46 is: 95,061.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,555.45 : 308,366.42 = 63,367.46 : x
  2. Step 2: Convert to fraction form
    205,555.45/308,366.42 = 63,367.46/x
  3. Step 3: Cross multiply
    205,555.45x = 308,366.42 × 63,367.46
  4. Step 4: Simplify right side
    205,555.45x = 19,540,395,455.70
  5. Step 5: Solve for x
    x = 19,540,395,455.70/205,555.45
  6. Step 6: Final answer
    x = 95,061.43

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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.