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Finding the Fourth Proportional to 325,893.96, 488,841.36 and 89,238.69

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Solution

The fourth proportional to 325,893.96, 488,841.36 and 89,238.69 is: 133,858.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,893.96 : 488,841.36 = 89,238.69 : x
  2. Step 2: Convert to fraction form
    325,893.96/488,841.36 = 89,238.69/x
  3. Step 3: Cross multiply
    325,893.96x = 488,841.36 × 89,238.69
  4. Step 4: Simplify right side
    325,893.96x = 43,623,562,584.22
  5. Step 5: Solve for x
    x = 43,623,562,584.22/325,893.96
  6. Step 6: Final answer
    x = 133,858.15

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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.