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Finding the Fourth Proportional to 250,589.64, 345,813.66 and 137,414.82

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Solution

The fourth proportional to 250,589.64, 345,813.66 and 137,414.82 is: 189,632.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,589.64 : 345,813.66 = 137,414.82 : x
  2. Step 2: Convert to fraction form
    250,589.64/345,813.66 = 137,414.82/x
  3. Step 3: Cross multiply
    250,589.64x = 345,813.66 × 137,414.82
  4. Step 4: Simplify right side
    250,589.64x = 47,519,921,842.44
  5. Step 5: Solve for x
    x = 47,519,921,842.44/250,589.64
  6. Step 6: Final answer
    x = 189,632.43

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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.