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Finding the Fourth Proportional to 205,683.30, 308,524.95 and 164,211.30

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Solution

The fourth proportional to 205,683.30, 308,524.95 and 164,211.30 is: 246,316.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,683.30 : 308,524.95 = 164,211.30 : x
  2. Step 2: Convert to fraction form
    205,683.30/308,524.95 = 164,211.30/x
  3. Step 3: Cross multiply
    205,683.30x = 308,524.95 × 164,211.30
  4. Step 4: Simplify right side
    205,683.30x = 50,663,283,121.94
  5. Step 5: Solve for x
    x = 50,663,283,121.94/205,683.30
  6. Step 6: Final answer
    x = 246,316.95

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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.