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Finding the Fourth Proportional to 266,789.94, 400,185.42 and 67,108.98

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Solution

The fourth proportional to 266,789.94, 400,185.42 and 67,108.98 is: 100,663.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,789.94 : 400,185.42 = 67,108.98 : x
  2. Step 2: Convert to fraction form
    266,789.94/400,185.42 = 67,108.98/x
  3. Step 3: Cross multiply
    266,789.94x = 400,185.42 × 67,108.98
  4. Step 4: Simplify right side
    266,789.94x = 26,856,035,347.07
  5. Step 5: Solve for x
    x = 26,856,035,347.07/266,789.94
  6. Step 6: Final answer
    x = 100,663.60

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1.5x scale

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.