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Finding the Fourth Proportional to 266,196.67, 398,890.98 and 195,166.60

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Solution

The fourth proportional to 266,196.67, 398,890.98 and 195,166.60 is: 292,453.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,196.67 : 398,890.98 = 195,166.60 : x
  2. Step 2: Convert to fraction form
    266,196.67/398,890.98 = 195,166.60/x
  3. Step 3: Cross multiply
    266,196.67x = 398,890.98 × 195,166.60
  4. Step 4: Simplify right side
    266,196.67x = 77,850,195,340.04
  5. Step 5: Solve for x
    x = 77,850,195,340.04/266,196.67
  6. Step 6: Final answer
    x = 292,453.68

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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.