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Finding the Fourth Proportional to 79,793.52, 110,064.60 and 57,087.60

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Solution

The fourth proportional to 79,793.52, 110,064.60 and 57,087.60 is: 78,744.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,793.52 : 110,064.60 = 57,087.60 : x
  2. Step 2: Convert to fraction form
    79,793.52/110,064.60 = 57,087.60/x
  3. Step 3: Cross multiply
    79,793.52x = 110,064.60 × 57,087.60
  4. Step 4: Simplify right side
    79,793.52x = 6,283,323,858.96
  5. Step 5: Solve for x
    x = 6,283,323,858.96/79,793.52
  6. Step 6: Final answer
    x = 78,744.79

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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.