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Finding the Fourth Proportional to 325,511.92, 488,344.02 and 100,860.58

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Solution

The fourth proportional to 325,511.92, 488,344.02 and 100,860.58 is: 151,314.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,511.92 : 488,344.02 = 100,860.58 : x
  2. Step 2: Convert to fraction form
    325,511.92/488,344.02 = 100,860.58/x
  3. Step 3: Cross multiply
    325,511.92x = 488,344.02 × 100,860.58
  4. Step 4: Simplify right side
    325,511.92x = 49,254,661,096.73
  5. Step 5: Solve for x
    x = 49,254,661,096.73/325,511.92
  6. Step 6: Final answer
    x = 151,314.46

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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.