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Finding the Fourth Proportional to 248,721.60, 372,288.60 and 196,233.60

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Solution

The fourth proportional to 248,721.60, 372,288.60 and 196,233.60 is: 293,724.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,721.60 : 372,288.60 = 196,233.60 : x
  2. Step 2: Convert to fraction form
    248,721.60/372,288.60 = 196,233.60/x
  3. Step 3: Cross multiply
    248,721.60x = 372,288.60 × 196,233.60
  4. Step 4: Simplify right side
    248,721.60x = 73,055,532,216.96
  5. Step 5: Solve for x
    x = 73,055,532,216.96/248,721.60
  6. Step 6: Final answer
    x = 293,724.12

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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.