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Finding the Fourth Proportional to 303,907.45, 419,408.43 and 174,865.53

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Solution

The fourth proportional to 303,907.45, 419,408.43 and 174,865.53 is: 241,323.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,907.45 : 419,408.43 = 174,865.53 : x
  2. Step 2: Convert to fraction form
    303,907.45/419,408.43 = 174,865.53/x
  3. Step 3: Cross multiply
    303,907.45x = 419,408.43 × 174,865.53
  4. Step 4: Simplify right side
    303,907.45x = 73,340,077,398.42
  5. Step 5: Solve for x
    x = 73,340,077,398.42/303,907.45
  6. Step 6: Final answer
    x = 241,323.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.