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Finding the Fourth Proportional to 271,634.45, 407,433.45 and 71,950.55

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Solution

The fourth proportional to 271,634.45, 407,433.45 and 71,950.55 is: 107,921.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,634.45 : 407,433.45 = 71,950.55 : x
  2. Step 2: Convert to fraction form
    271,634.45/407,433.45 = 71,950.55/x
  3. Step 3: Cross multiply
    271,634.45x = 407,433.45 × 71,950.55
  4. Step 4: Simplify right side
    271,634.45x = 29,315,060,815.90
  5. Step 5: Solve for x
    x = 29,315,060,815.90/271,634.45
  6. Step 6: Final answer
    x = 107,921.00

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1.5x scale

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.