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Finding the Fourth Proportional to 266,051.70, 399,077.55 and 231,837.30

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Solution

The fourth proportional to 266,051.70, 399,077.55 and 231,837.30 is: 347,755.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,051.70 : 399,077.55 = 231,837.30 : x
  2. Step 2: Convert to fraction form
    266,051.70/399,077.55 = 231,837.30/x
  3. Step 3: Cross multiply
    266,051.70x = 399,077.55 × 231,837.30
  4. Step 4: Simplify right side
    266,051.70x = 92,521,061,682.62
  5. Step 5: Solve for x
    x = 92,521,061,682.62/266,051.70
  6. Step 6: Final answer
    x = 347,755.95

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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.