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Finding the Fourth Proportional to 203,993.66, 281,423.92 and 127,379.74

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Solution

The fourth proportional to 203,993.66, 281,423.92 and 127,379.74 is: 175,729.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,993.66 : 281,423.92 = 127,379.74 : x
  2. Step 2: Convert to fraction form
    203,993.66/281,423.92 = 127,379.74/x
  3. Step 3: Cross multiply
    203,993.66x = 281,423.92 × 127,379.74
  4. Step 4: Simplify right side
    203,993.66x = 35,847,706,653.64
  5. Step 5: Solve for x
    x = 35,847,706,653.64/203,993.66
  6. Step 6: Final answer
    x = 175,729.52

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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.