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Finding the Fourth Proportional to 379,976.49, 570,121.65 and 166,633.95

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Solution

The fourth proportional to 379,976.49, 570,121.65 and 166,633.95 is: 250,019.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,976.49 : 570,121.65 = 166,633.95 : x
  2. Step 2: Convert to fraction form
    379,976.49/570,121.65 = 166,633.95/x
  3. Step 3: Cross multiply
    379,976.49x = 570,121.65 × 166,633.95
  4. Step 4: Simplify right side
    379,976.49x = 95,001,622,520.02
  5. Step 5: Solve for x
    x = 95,001,622,520.02/379,976.49
  6. Step 6: Final answer
    x = 250,019.74

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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.