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Finding the Fourth Proportional to 79,085.78, 118,644.48 and 29,166.11

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Solution

The fourth proportional to 79,085.78, 118,644.48 and 29,166.11 is: 43,754.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,085.78 : 118,644.48 = 29,166.11 : x
  2. Step 2: Convert to fraction form
    79,085.78/118,644.48 = 29,166.11/x
  3. Step 3: Cross multiply
    79,085.78x = 118,644.48 × 29,166.11
  4. Step 4: Simplify right side
    79,085.78x = 3,460,397,361.35
  5. Step 5: Solve for x
    x = 3,460,397,361.35/79,085.78
  6. Step 6: Final answer
    x = 43,754.99

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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.