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Finding the Fourth Proportional to 255,611.88, 352,745.79 and 148,245.57

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Solution

The fourth proportional to 255,611.88, 352,745.79 and 148,245.57 is: 204,579.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,611.88 : 352,745.79 = 148,245.57 : x
  2. Step 2: Convert to fraction form
    255,611.88/352,745.79 = 148,245.57/x
  3. Step 3: Cross multiply
    255,611.88x = 352,745.79 × 148,245.57
  4. Step 4: Simplify right side
    255,611.88x = 52,293,000,703.65
  5. Step 5: Solve for x
    x = 52,293,000,703.65/255,611.88
  6. Step 6: Final answer
    x = 204,579.70

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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.