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Finding the Fourth Proportional to 133,093.80, 199,640.70 and 119,730.60

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Solution

The fourth proportional to 133,093.80, 199,640.70 and 119,730.60 is: 179,595.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,093.80 : 199,640.70 = 119,730.60 : x
  2. Step 2: Convert to fraction form
    133,093.80/199,640.70 = 119,730.60/x
  3. Step 3: Cross multiply
    133,093.80x = 199,640.70 × 119,730.60
  4. Step 4: Simplify right side
    133,093.80x = 23,903,100,795.42
  5. Step 5: Solve for x
    x = 23,903,100,795.42/133,093.80
  6. Step 6: Final answer
    x = 179,595.90

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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.