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Finding the Fourth Proportional to 362,408.67, 543,389.67 and 122,499.90

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Solution

The fourth proportional to 362,408.67, 543,389.67 and 122,499.90 is: 183,674.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,408.67 : 543,389.67 = 122,499.90 : x
  2. Step 2: Convert to fraction form
    362,408.67/543,389.67 = 122,499.90/x
  3. Step 3: Cross multiply
    362,408.67x = 543,389.67 × 122,499.90
  4. Step 4: Simplify right side
    362,408.67x = 66,565,180,236.03
  5. Step 5: Solve for x
    x = 66,565,180,236.03/362,408.67
  6. Step 6: Final answer
    x = 183,674.36

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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.