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Finding the Fourth Proportional to 71,191.41, 98,244.60 and 39,361.44

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Solution

The fourth proportional to 71,191.41, 98,244.60 and 39,361.44 is: 54,319.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,191.41 : 98,244.60 = 39,361.44 : x
  2. Step 2: Convert to fraction form
    71,191.41/98,244.60 = 39,361.44/x
  3. Step 3: Cross multiply
    71,191.41x = 98,244.60 × 39,361.44
  4. Step 4: Simplify right side
    71,191.41x = 3,867,049,149.04
  5. Step 5: Solve for x
    x = 3,867,049,149.04/71,191.41
  6. Step 6: Final answer
    x = 54,319.04

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1.5x scale

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.