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Finding the Fourth Proportional to 325,889.46, 488,834.60 and 89,234.19

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Solution

The fourth proportional to 325,889.46, 488,834.60 and 89,234.19 is: 133,851.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,889.46 : 488,834.60 = 89,234.19 : x
  2. Step 2: Convert to fraction form
    325,889.46/488,834.60 = 89,234.19/x
  3. Step 3: Cross multiply
    325,889.46x = 488,834.60 × 89,234.19
  4. Step 4: Simplify right side
    325,889.46x = 43,620,759,128.80
  5. Step 5: Solve for x
    x = 43,620,759,128.80/325,889.46
  6. Step 6: Final answer
    x = 133,851.40

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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.