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Finding the Fourth Proportional to 343,627.28, 474,229.32 and 192,734

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Solution

The fourth proportional to 343,627.28, 474,229.32 and 192,734 is: 265,986.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,627.28 : 474,229.32 = 192,734 : x
  2. Step 2: Convert to fraction form
    343,627.28/474,229.32 = 192,734/x
  3. Step 3: Cross multiply
    343,627.28x = 474,229.32 × 192,734
  4. Step 4: Simplify right side
    343,627.28x = 91,400,113,760.88
  5. Step 5: Solve for x
    x = 91,400,113,760.88/343,627.28
  6. Step 6: Final answer
    x = 265,986.20

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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.