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Finding the Fourth Proportional to 79,706.90, 119,504.43 and 35,309.54

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Solution

The fourth proportional to 79,706.90, 119,504.43 and 35,309.54 is: 52,939.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,706.90 : 119,504.43 = 35,309.54 : x
  2. Step 2: Convert to fraction form
    79,706.90/119,504.43 = 35,309.54/x
  3. Step 3: Cross multiply
    79,706.90x = 119,504.43 × 35,309.54
  4. Step 4: Simplify right side
    79,706.90x = 4,219,646,451.26
  5. Step 5: Solve for x
    x = 4,219,646,451.26/79,706.90
  6. Step 6: Final answer
    x = 52,939.54

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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.