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Finding the Fourth Proportional to 167,999.20, 251,998.80 and 164,111.20

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Solution

The fourth proportional to 167,999.20, 251,998.80 and 164,111.20 is: 246,166.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,999.20 : 251,998.80 = 164,111.20 : x
  2. Step 2: Convert to fraction form
    167,999.20/251,998.80 = 164,111.20/x
  3. Step 3: Cross multiply
    167,999.20x = 251,998.80 × 164,111.20
  4. Step 4: Simplify right side
    167,999.20x = 41,355,825,466.56
  5. Step 5: Solve for x
    x = 41,355,825,466.56/167,999.20
  6. Step 6: Final answer
    x = 246,166.80

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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.