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Finding the Fourth Proportional to 203,028.20, 303,886.20 and 158,413.40

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Solution

The fourth proportional to 203,028.20, 303,886.20 and 158,413.40 is: 237,108.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,028.20 : 303,886.20 = 158,413.40 : x
  2. Step 2: Convert to fraction form
    203,028.20/303,886.20 = 158,413.40/x
  3. Step 3: Cross multiply
    203,028.20x = 303,886.20 × 158,413.40
  4. Step 4: Simplify right side
    203,028.20x = 48,139,646,155.08
  5. Step 5: Solve for x
    x = 48,139,646,155.08/203,028.20
  6. Step 6: Final answer
    x = 237,108.18

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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.