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Finding the Fourth Proportional to 255,745.68, 352,930.56 and 148,379.64

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Solution

The fourth proportional to 255,745.68, 352,930.56 and 148,379.64 is: 204,764.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,745.68 : 352,930.56 = 148,379.64 : x
  2. Step 2: Convert to fraction form
    255,745.68/352,930.56 = 148,379.64/x
  3. Step 3: Cross multiply
    255,745.68x = 352,930.56 × 148,379.64
  4. Step 4: Simplify right side
    255,745.68x = 52,367,709,437.80
  5. Step 5: Solve for x
    x = 52,367,709,437.80/255,745.68
  6. Step 6: Final answer
    x = 204,764.79

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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.