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Finding the Fourth Proportional to 125,818.44, 188,758.77 and 103,367.06

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Solution

The fourth proportional to 125,818.44, 188,758.77 and 103,367.06 is: 155,076.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,818.44 : 188,758.77 = 103,367.06 : x
  2. Step 2: Convert to fraction form
    125,818.44/188,758.77 = 103,367.06/x
  3. Step 3: Cross multiply
    125,818.44x = 188,758.77 × 103,367.06
  4. Step 4: Simplify right side
    125,818.44x = 19,511,439,104.12
  5. Step 5: Solve for x
    x = 19,511,439,104.12/125,818.44
  6. Step 6: Final answer
    x = 155,076.15

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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.