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Finding the Fourth Proportional to 240,942.40, 361,413.60 and 151,907.20

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Solution

The fourth proportional to 240,942.40, 361,413.60 and 151,907.20 is: 227,860.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,942.40 : 361,413.60 = 151,907.20 : x
  2. Step 2: Convert to fraction form
    240,942.40/361,413.60 = 151,907.20/x
  3. Step 3: Cross multiply
    240,942.40x = 361,413.60 × 151,907.20
  4. Step 4: Simplify right side
    240,942.40x = 54,901,328,017.92
  5. Step 5: Solve for x
    x = 54,901,328,017.92/240,942.40
  6. Step 6: Final answer
    x = 227,860.80

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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.