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Finding the Fourth Proportional to 234,217.20, 351,128.92 and 189,733.64

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Solution

The fourth proportional to 234,217.20, 351,128.92 and 189,733.64 is: 284,440.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,217.20 : 351,128.92 = 189,733.64 : x
  2. Step 2: Convert to fraction form
    234,217.20/351,128.92 = 189,733.64/x
  3. Step 3: Cross multiply
    234,217.20x = 351,128.92 × 189,733.64
  4. Step 4: Simplify right side
    234,217.20x = 66,620,968,100.87
  5. Step 5: Solve for x
    x = 66,620,968,100.87/234,217.20
  6. Step 6: Final answer
    x = 284,440.97

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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.