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Finding the Fourth Proportional to 80,846.63, 111,568.35 and 47,312.63

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Solution

The fourth proportional to 80,846.63, 111,568.35 and 47,312.63 is: 65,291.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,846.63 : 111,568.35 = 47,312.63 : x
  2. Step 2: Convert to fraction form
    80,846.63/111,568.35 = 47,312.63/x
  3. Step 3: Cross multiply
    80,846.63x = 111,568.35 × 47,312.63
  4. Step 4: Simplify right side
    80,846.63x = 5,278,591,505.42
  5. Step 5: Solve for x
    x = 5,278,591,505.42/80,846.63
  6. Step 6: Final answer
    x = 65,291.43

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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.