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Finding the Fourth Proportional to 223,090.75, 335,253.71 and 217,682.90

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Solution

The fourth proportional to 223,090.75, 335,253.71 and 217,682.90 is: 327,126.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,090.75 : 335,253.71 = 217,682.90 : x
  2. Step 2: Convert to fraction form
    223,090.75/335,253.71 = 217,682.90/x
  3. Step 3: Cross multiply
    223,090.75x = 335,253.71 × 217,682.90
  4. Step 4: Simplify right side
    223,090.75x = 72,978,999,828.56
  5. Step 5: Solve for x
    x = 72,978,999,828.56/223,090.75
  6. Step 6: Final answer
    x = 327,126.96

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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.