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Finding the Fourth Proportional to 197,999.20, 296,739.60 and 79,573.60

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Solution

The fourth proportional to 197,999.20, 296,739.60 and 79,573.60 is: 119,256.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,999.20 : 296,739.60 = 79,573.60 : x
  2. Step 2: Convert to fraction form
    197,999.20/296,739.60 = 79,573.60/x
  3. Step 3: Cross multiply
    197,999.20x = 296,739.60 × 79,573.60
  4. Step 4: Simplify right side
    197,999.20x = 23,612,638,234.56
  5. Step 5: Solve for x
    x = 23,612,638,234.56/197,999.20
  6. Step 6: Final answer
    x = 119,256.23

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1.5x scale

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.