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Finding the Fourth Proportional to 318,604.24, 439,670.37 and 175,361.20

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Solution

The fourth proportional to 318,604.24, 439,670.37 and 175,361.20 is: 241,996.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,604.24 : 439,670.37 = 175,361.20 : x
  2. Step 2: Convert to fraction form
    318,604.24/439,670.37 = 175,361.20/x
  3. Step 3: Cross multiply
    318,604.24x = 439,670.37 × 175,361.20
  4. Step 4: Simplify right side
    318,604.24x = 77,101,123,687.64
  5. Step 5: Solve for x
    x = 77,101,123,687.64/318,604.24
  6. Step 6: Final answer
    x = 241,996.54

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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.