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Finding the Fourth Proportional to 298,367.62, 447,539.28 and 73,722.39

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Solution

The fourth proportional to 298,367.62, 447,539.28 and 73,722.39 is: 110,580.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,367.62 : 447,539.28 = 73,722.39 : x
  2. Step 2: Convert to fraction form
    298,367.62/447,539.28 = 73,722.39/x
  3. Step 3: Cross multiply
    298,367.62x = 447,539.28 × 73,722.39
  4. Step 4: Simplify right side
    298,367.62x = 32,993,666,317.84
  5. Step 5: Solve for x
    x = 32,993,666,317.84/298,367.62
  6. Step 6: Final answer
    x = 110,580.59

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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.