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Finding the Fourth Proportional to 74,245.44, 102,472.90 and 58,080.54

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Solution

The fourth proportional to 74,245.44, 102,472.90 and 58,080.54 is: 80,162.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,245.44 : 102,472.90 = 58,080.54 : x
  2. Step 2: Convert to fraction form
    74,245.44/102,472.90 = 58,080.54/x
  3. Step 3: Cross multiply
    74,245.44x = 102,472.90 × 58,080.54
  4. Step 4: Simplify right side
    74,245.44x = 5,951,681,367.37
  5. Step 5: Solve for x
    x = 5,951,681,367.37/74,245.44
  6. Step 6: Final answer
    x = 80,162.25

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1.5x scale

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.