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Finding the Fourth Proportional to 329,091.60, 493,584.60 and 118,621.20

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Solution

The fourth proportional to 329,091.60, 493,584.60 and 118,621.20 is: 177,912.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,091.60 : 493,584.60 = 118,621.20 : x
  2. Step 2: Convert to fraction form
    329,091.60/493,584.60 = 118,621.20/x
  3. Step 3: Cross multiply
    329,091.60x = 493,584.60 × 118,621.20
  4. Step 4: Simplify right side
    329,091.60x = 58,549,597,553.52
  5. Step 5: Solve for x
    x = 58,549,597,553.52/329,091.60
  6. Step 6: Final answer
    x = 177,912.77

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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.