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Finding the Fourth Proportional to 126,676.52, 174,796.37 and 75,678.45

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Solution

The fourth proportional to 126,676.52, 174,796.37 and 75,678.45 is: 104,425.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,676.52 : 174,796.37 = 75,678.45 : x
  2. Step 2: Convert to fraction form
    126,676.52/174,796.37 = 75,678.45/x
  3. Step 3: Cross multiply
    126,676.52x = 174,796.37 × 75,678.45
  4. Step 4: Simplify right side
    126,676.52x = 13,228,318,624.32
  5. Step 5: Solve for x
    x = 13,228,318,624.32/126,676.52
  6. Step 6: Final answer
    x = 104,425.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.