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Finding the Fourth Proportional to 325,529, 488,296.54 and 115,202.60

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Solution

The fourth proportional to 325,529, 488,296.54 and 115,202.60 is: 172,804.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,529 : 488,296.54 = 115,202.60 : x
  2. Step 2: Convert to fraction form
    325,529/488,296.54 = 115,202.60/x
  3. Step 3: Cross multiply
    325,529x = 488,296.54 × 115,202.60
  4. Step 4: Simplify right side
    325,529x = 56,253,030,979.00
  5. Step 5: Solve for x
    x = 56,253,030,979.00/325,529
  6. Step 6: Final answer
    x = 172,804.98

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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.