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Finding the Fourth Proportional to 266,413.70, 400,604.70 and 223,111.10

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Solution

The fourth proportional to 266,413.70, 400,604.70 and 223,111.10 is: 335,490.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,413.70 : 400,604.70 = 223,111.10 : x
  2. Step 2: Convert to fraction form
    266,413.70/400,604.70 = 223,111.10/x
  3. Step 3: Cross multiply
    266,413.70x = 400,604.70 × 223,111.10
  4. Step 4: Simplify right side
    266,413.70x = 89,379,355,282.17
  5. Step 5: Solve for x
    x = 89,379,355,282.17/266,413.70
  6. Step 6: Final answer
    x = 335,490.84

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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.