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Finding the Fourth Proportional to 455,675.38, 683,504.60 and 136,043.96

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Solution

The fourth proportional to 455,675.38, 683,504.60 and 136,043.96 is: 204,063.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,675.38 : 683,504.60 = 136,043.96 : x
  2. Step 2: Convert to fraction form
    455,675.38/683,504.60 = 136,043.96/x
  3. Step 3: Cross multiply
    455,675.38x = 683,504.60 × 136,043.96
  4. Step 4: Simplify right side
    455,675.38x = 92,986,675,279.41
  5. Step 5: Solve for x
    x = 92,986,675,279.41/455,675.38
  6. Step 6: Final answer
    x = 204,063.42

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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.