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Finding the Fourth Proportional to 283,609.20, 425,413.80 and 141,891.60

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Solution

The fourth proportional to 283,609.20, 425,413.80 and 141,891.60 is: 212,837.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,609.20 : 425,413.80 = 141,891.60 : x
  2. Step 2: Convert to fraction form
    283,609.20/425,413.80 = 141,891.60/x
  3. Step 3: Cross multiply
    283,609.20x = 425,413.80 × 141,891.60
  4. Step 4: Simplify right side
    283,609.20x = 60,362,644,744.08
  5. Step 5: Solve for x
    x = 60,362,644,744.08/283,609.20
  6. Step 6: Final answer
    x = 212,837.40

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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.