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Finding the Fourth Proportional to 195,286.40, 292,238.40 and 133,078.40

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Solution

The fourth proportional to 195,286.40, 292,238.40 and 133,078.40 is: 199,146.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,286.40 : 292,238.40 = 133,078.40 : x
  2. Step 2: Convert to fraction form
    195,286.40/292,238.40 = 133,078.40/x
  3. Step 3: Cross multiply
    195,286.40x = 292,238.40 × 133,078.40
  4. Step 4: Simplify right side
    195,286.40x = 38,890,618,690.56
  5. Step 5: Solve for x
    x = 38,890,618,690.56/195,286.40
  6. Step 6: Final answer
    x = 199,146.58

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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.