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Finding the Fourth Proportional to 228,891.80, 343,337.70 and 134,413.40

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Solution

The fourth proportional to 228,891.80, 343,337.70 and 134,413.40 is: 201,620.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,891.80 : 343,337.70 = 134,413.40 : x
  2. Step 2: Convert to fraction form
    228,891.80/343,337.70 = 134,413.40/x
  3. Step 3: Cross multiply
    228,891.80x = 343,337.70 × 134,413.40
  4. Step 4: Simplify right side
    228,891.80x = 46,149,187,605.18
  5. Step 5: Solve for x
    x = 46,149,187,605.18/228,891.80
  6. Step 6: Final answer
    x = 201,620.10

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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.