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Finding the Fourth Proportional to 347,475.12, 479,517.52 and 196,568.88

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Solution

The fourth proportional to 347,475.12, 479,517.52 and 196,568.88 is: 271,266.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,475.12 : 479,517.52 = 196,568.88 : x
  2. Step 2: Convert to fraction form
    347,475.12/479,517.52 = 196,568.88/x
  3. Step 3: Cross multiply
    347,475.12x = 479,517.52 × 196,568.88
  4. Step 4: Simplify right side
    347,475.12x = 94,258,221,846.78
  5. Step 5: Solve for x
    x = 94,258,221,846.78/347,475.12
  6. Step 6: Final answer
    x = 271,266.10

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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.