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Finding the Fourth Proportional to 79,079.56, 118,427.37 and 43,486.54

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Solution

The fourth proportional to 79,079.56, 118,427.37 and 43,486.54 is: 65,124.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,079.56 : 118,427.37 = 43,486.54 : x
  2. Step 2: Convert to fraction form
    79,079.56/118,427.37 = 43,486.54/x
  3. Step 3: Cross multiply
    79,079.56x = 118,427.37 × 43,486.54
  4. Step 4: Simplify right side
    79,079.56x = 5,149,996,562.60
  5. Step 5: Solve for x
    x = 5,149,996,562.60/79,079.56
  6. Step 6: Final answer
    x = 65,124.24

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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.