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Finding the Fourth Proportional to 368,152.80, 552,553.20 and 218,205.60

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Solution

The fourth proportional to 368,152.80, 552,553.20 and 218,205.60 is: 327,500.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,152.80 : 552,553.20 = 218,205.60 : x
  2. Step 2: Convert to fraction form
    368,152.80/552,553.20 = 218,205.60/x
  3. Step 3: Cross multiply
    368,152.80x = 552,553.20 × 218,205.60
  4. Step 4: Simplify right side
    368,152.80x = 120,570,202,537.92
  5. Step 5: Solve for x
    x = 120,570,202,537.92/368,152.80
  6. Step 6: Final answer
    x = 327,500.44

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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.