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Finding the Fourth Proportional to 298,793.60, 448,179.60 and 121,295.60

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Solution

The fourth proportional to 298,793.60, 448,179.60 and 121,295.60 is: 181,939.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,793.60 : 448,179.60 = 121,295.60 : x
  2. Step 2: Convert to fraction form
    298,793.60/448,179.60 = 121,295.60/x
  3. Step 3: Cross multiply
    298,793.60x = 448,179.60 × 121,295.60
  4. Step 4: Simplify right side
    298,793.60x = 54,362,213,489.76
  5. Step 5: Solve for x
    x = 54,362,213,489.76/298,793.60
  6. Step 6: Final answer
    x = 181,939.02

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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.