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Finding the Fourth Proportional to 298,633.30, 447,944.44 and 73,994.28

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Solution

The fourth proportional to 298,633.30, 447,944.44 and 73,994.28 is: 110,990.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,633.30 : 447,944.44 = 73,994.28 : x
  2. Step 2: Convert to fraction form
    298,633.30/447,944.44 = 73,994.28/x
  3. Step 3: Cross multiply
    298,633.30x = 447,944.44 × 73,994.28
  4. Step 4: Simplify right side
    298,633.30x = 33,145,326,317.80
  5. Step 5: Solve for x
    x = 33,145,326,317.80/298,633.30
  6. Step 6: Final answer
    x = 110,990.05

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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.