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Finding the Fourth Proportional to 192,820.20, 289,230.30 and 188,883.60

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Solution

The fourth proportional to 192,820.20, 289,230.30 and 188,883.60 is: 283,325.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,820.20 : 289,230.30 = 188,883.60 : x
  2. Step 2: Convert to fraction form
    192,820.20/289,230.30 = 188,883.60/x
  3. Step 3: Cross multiply
    192,820.20x = 289,230.30 × 188,883.60
  4. Step 4: Simplify right side
    192,820.20x = 54,630,860,293.08
  5. Step 5: Solve for x
    x = 54,630,860,293.08/192,820.20
  6. Step 6: Final answer
    x = 283,325.40

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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.