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Finding the Fourth Proportional to 325,611.60, 488,271.60 and 125,865.60

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Solution

The fourth proportional to 325,611.60, 488,271.60 and 125,865.60 is: 188,742.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,611.60 : 488,271.60 = 125,865.60 : x
  2. Step 2: Convert to fraction form
    325,611.60/488,271.60 = 125,865.60/x
  3. Step 3: Cross multiply
    325,611.60x = 488,271.60 × 125,865.60
  4. Step 4: Simplify right side
    325,611.60x = 61,456,597,896.96
  5. Step 5: Solve for x
    x = 61,456,597,896.96/325,611.60
  6. Step 6: Final answer
    x = 188,742.04

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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.