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Finding the Fourth Proportional to 169,676.80, 254,507.20 and 57,361.50

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Solution

The fourth proportional to 169,676.80, 254,507.20 and 57,361.50 is: 86,039.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,676.80 : 254,507.20 = 57,361.50 : x
  2. Step 2: Convert to fraction form
    169,676.80/254,507.20 = 57,361.50/x
  3. Step 3: Cross multiply
    169,676.80x = 254,507.20 × 57,361.50
  4. Step 4: Simplify right side
    169,676.80x = 14,598,914,609.40
  5. Step 5: Solve for x
    x = 14,598,914,609.40/169,676.80
  6. Step 6: Final answer
    x = 86,039.55

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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.