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Finding the Fourth Proportional to 367,413.76, 551,155.50 and 142,791.55

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Solution

The fourth proportional to 367,413.76, 551,155.50 and 142,791.55 is: 214,200.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,413.76 : 551,155.50 = 142,791.55 : x
  2. Step 2: Convert to fraction form
    367,413.76/551,155.50 = 142,791.55/x
  3. Step 3: Cross multiply
    367,413.76x = 551,155.50 × 142,791.55
  4. Step 4: Simplify right side
    367,413.76x = 78,700,348,136.03
  5. Step 5: Solve for x
    x = 78,700,348,136.03/367,413.76
  6. Step 6: Final answer
    x = 214,200.87

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1.5x scale

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.