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Finding the Fourth Proportional to 133,081.55, 199,622.33 and 119,959.55

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Solution

The fourth proportional to 133,081.55, 199,622.33 and 119,959.55 is: 179,939.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,081.55 : 199,622.33 = 119,959.55 : x
  2. Step 2: Convert to fraction form
    133,081.55/199,622.33 = 119,959.55/x
  3. Step 3: Cross multiply
    133,081.55x = 199,622.33 × 119,959.55
  4. Step 4: Simplify right side
    133,081.55x = 23,946,604,876.75
  5. Step 5: Solve for x
    x = 23,946,604,876.75/133,081.55
  6. Step 6: Final answer
    x = 179,939.33

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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.