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Finding the Fourth Proportional to 344,066.43, 515,890.05 and 154,489.98

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Solution

The fourth proportional to 344,066.43, 515,890.05 and 154,489.98 is: 231,640.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,066.43 : 515,890.05 = 154,489.98 : x
  2. Step 2: Convert to fraction form
    344,066.43/515,890.05 = 154,489.98/x
  3. Step 3: Cross multiply
    344,066.43x = 515,890.05 × 154,489.98
  4. Step 4: Simplify right side
    344,066.43x = 79,699,843,506.70
  5. Step 5: Solve for x
    x = 79,699,843,506.70/344,066.43
  6. Step 6: Final answer
    x = 231,640.86

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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.