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Finding the Fourth Proportional to 169,744.10, 254,671.43 and 80,986.13

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Solution

The fourth proportional to 169,744.10, 254,671.43 and 80,986.13 is: 121,505.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,744.10 : 254,671.43 = 80,986.13 : x
  2. Step 2: Convert to fraction form
    169,744.10/254,671.43 = 80,986.13/x
  3. Step 3: Cross multiply
    169,744.10x = 254,671.43 × 80,986.13
  4. Step 4: Simplify right side
    169,744.10x = 20,624,851,858.98
  5. Step 5: Solve for x
    x = 20,624,851,858.98/169,744.10
  6. Step 6: Final answer
    x = 121,505.56

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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.