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Finding the Fourth Proportional to 234,893.80, 352,362.30 and 66,413.80

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Solution

The fourth proportional to 234,893.80, 352,362.30 and 66,413.80 is: 99,626.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,893.80 : 352,362.30 = 66,413.80 : x
  2. Step 2: Convert to fraction form
    234,893.80/352,362.30 = 66,413.80/x
  3. Step 3: Cross multiply
    234,893.80x = 352,362.30 × 66,413.80
  4. Step 4: Simplify right side
    234,893.80x = 23,401,719,319.74
  5. Step 5: Solve for x
    x = 23,401,719,319.74/234,893.80
  6. Step 6: Final answer
    x = 99,626.81

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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.