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Finding the Fourth Proportional to 248,711.60, 372,273.60 and 196,223.60

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Solution

The fourth proportional to 248,711.60, 372,273.60 and 196,223.60 is: 293,709.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,711.60 : 372,273.60 = 196,223.60 : x
  2. Step 2: Convert to fraction form
    248,711.60/372,273.60 = 196,223.60/x
  3. Step 3: Cross multiply
    248,711.60x = 372,273.60 × 196,223.60
  4. Step 4: Simplify right side
    248,711.60x = 73,048,865,976.96
  5. Step 5: Solve for x
    x = 73,048,865,976.96/248,711.60
  6. Step 6: Final answer
    x = 293,709.12

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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.