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Finding the Fourth Proportional to 208,780.44, 313,170.66 and 61,036.44

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Solution

The fourth proportional to 208,780.44, 313,170.66 and 61,036.44 is: 91,554.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,780.44 : 313,170.66 = 61,036.44 : x
  2. Step 2: Convert to fraction form
    208,780.44/313,170.66 = 61,036.44/x
  3. Step 3: Cross multiply
    208,780.44x = 313,170.66 × 61,036.44
  4. Step 4: Simplify right side
    208,780.44x = 19,114,822,198.85
  5. Step 5: Solve for x
    x = 19,114,822,198.85/208,780.44
  6. Step 6: Final answer
    x = 91,554.66

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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.