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Finding the Fourth Proportional to 403,408.44, 605,112.30 and 166,490.52

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Solution

The fourth proportional to 403,408.44, 605,112.30 and 166,490.52 is: 249,735.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,408.44 : 605,112.30 = 166,490.52 : x
  2. Step 2: Convert to fraction form
    403,408.44/605,112.30 = 166,490.52/x
  3. Step 3: Cross multiply
    403,408.44x = 605,112.30 × 166,490.52
  4. Step 4: Simplify right side
    403,408.44x = 100,745,461,485.40
  5. Step 5: Solve for x
    x = 100,745,461,485.40/403,408.44
  6. Step 6: Final answer
    x = 249,735.63

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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.