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Finding the Fourth Proportional to 168,647.20, 252,938.40 and 50,322.40

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Solution

The fourth proportional to 168,647.20, 252,938.40 and 50,322.40 is: 75,473.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,647.20 : 252,938.40 = 50,322.40 : x
  2. Step 2: Convert to fraction form
    168,647.20/252,938.40 = 50,322.40/x
  3. Step 3: Cross multiply
    168,647.20x = 252,938.40 × 50,322.40
  4. Step 4: Simplify right side
    168,647.20x = 12,728,467,340.16
  5. Step 5: Solve for x
    x = 12,728,467,340.16/168,647.20
  6. Step 6: Final answer
    x = 75,473.93

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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.