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Finding the Fourth Proportional to 325,379.64, 488,209.11 and 125,840.04

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Solution

The fourth proportional to 325,379.64, 488,209.11 and 125,840.04 is: 188,814.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,379.64 : 488,209.11 = 125,840.04 : x
  2. Step 2: Convert to fraction form
    325,379.64/488,209.11 = 125,840.04/x
  3. Step 3: Cross multiply
    325,379.64x = 488,209.11 × 125,840.04
  4. Step 4: Simplify right side
    325,379.64x = 61,436,253,930.76
  5. Step 5: Solve for x
    x = 61,436,253,930.76/325,379.64
  6. Step 6: Final answer
    x = 188,814.07

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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.