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Finding the Fourth Proportional to 218,586.21, 301,662.68 and 132,605.52

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Solution

The fourth proportional to 218,586.21, 301,662.68 and 132,605.52 is: 183,003.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,586.21 : 301,662.68 = 132,605.52 : x
  2. Step 2: Convert to fraction form
    218,586.21/301,662.68 = 132,605.52/x
  3. Step 3: Cross multiply
    218,586.21x = 301,662.68 × 132,605.52
  4. Step 4: Simplify right side
    218,586.21x = 40,002,135,882.97
  5. Step 5: Solve for x
    x = 40,002,135,882.97/218,586.21
  6. Step 6: Final answer
    x = 183,003.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.