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Finding the Fourth Proportional to 205,361.85, 308,071.95 and 63,218.94

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Solution

The fourth proportional to 205,361.85, 308,071.95 and 63,218.94 is: 94,837.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,361.85 : 308,071.95 = 63,218.94 : x
  2. Step 2: Convert to fraction form
    205,361.85/308,071.95 = 63,218.94/x
  3. Step 3: Cross multiply
    205,361.85x = 308,071.95 × 63,218.94
  4. Step 4: Simplify right side
    205,361.85x = 19,475,982,122.73
  5. Step 5: Solve for x
    x = 19,475,982,122.73/205,361.85
  6. Step 6: Final answer
    x = 94,837.39

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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.