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Finding the Fourth Proportional to 449,357.73, 673,999.68 and 133,814.63

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Solution

The fourth proportional to 449,357.73, 673,999.68 and 133,814.63 is: 200,710.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,357.73 : 673,999.68 = 133,814.63 : x
  2. Step 2: Convert to fraction form
    449,357.73/673,999.68 = 133,814.63/x
  3. Step 3: Cross multiply
    449,357.73x = 673,999.68 × 133,814.63
  4. Step 4: Simplify right side
    449,357.73x = 90,191,019,986.12
  5. Step 5: Solve for x
    x = 90,191,019,986.12/449,357.73
  6. Step 6: Final answer
    x = 200,710.96

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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.