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Finding the Fourth Proportional to 79,907.82, 119,830.56 and 29,960.70

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Solution

The fourth proportional to 79,907.82, 119,830.56 and 29,960.70 is: 44,929.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,907.82 : 119,830.56 = 29,960.70 : x
  2. Step 2: Convert to fraction form
    79,907.82/119,830.56 = 29,960.70/x
  3. Step 3: Cross multiply
    79,907.82x = 119,830.56 × 29,960.70
  4. Step 4: Simplify right side
    79,907.82x = 3,590,207,458.99
  5. Step 5: Solve for x
    x = 3,590,207,458.99/79,907.82
  6. Step 6: Final answer
    x = 44,929.36

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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.