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Finding the Fourth Proportional to 163,072.20, 244,608.30 and 104,023.20

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Solution

The fourth proportional to 163,072.20, 244,608.30 and 104,023.20 is: 156,034.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,072.20 : 244,608.30 = 104,023.20 : x
  2. Step 2: Convert to fraction form
    163,072.20/244,608.30 = 104,023.20/x
  3. Step 3: Cross multiply
    163,072.20x = 244,608.30 × 104,023.20
  4. Step 4: Simplify right side
    163,072.20x = 25,444,938,112.56
  5. Step 5: Solve for x
    x = 25,444,938,112.56/163,072.20
  6. Step 6: Final answer
    x = 156,034.80

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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.