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Finding the Fourth Proportional to 248,471.20, 372,706.80 and 169,739.20

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Solution

The fourth proportional to 248,471.20, 372,706.80 and 169,739.20 is: 254,608.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,471.20 : 372,706.80 = 169,739.20 : x
  2. Step 2: Convert to fraction form
    248,471.20/372,706.80 = 169,739.20/x
  3. Step 3: Cross multiply
    248,471.20x = 372,706.80 × 169,739.20
  4. Step 4: Simplify right side
    248,471.20x = 63,262,954,066.56
  5. Step 5: Solve for x
    x = 63,262,954,066.56/248,471.20
  6. Step 6: Final answer
    x = 254,608.80

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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.