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Finding the Fourth Proportional to 266,166.36, 398,917.32 and 133,084.68

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Solution

The fourth proportional to 266,166.36, 398,917.32 and 133,084.68 is: 199,460.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,166.36 : 398,917.32 = 133,084.68 : x
  2. Step 2: Convert to fraction form
    266,166.36/398,917.32 = 133,084.68/x
  3. Step 3: Cross multiply
    266,166.36x = 398,917.32 × 133,084.68
  4. Step 4: Simplify right side
    266,166.36x = 53,089,783,878.66
  5. Step 5: Solve for x
    x = 53,089,783,878.66/266,166.36
  6. Step 6: Final answer
    x = 199,460.91

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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.