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Finding the Fourth Proportional to 58,198.86, 80,344.80 and 45,249.48

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Solution

The fourth proportional to 58,198.86, 80,344.80 and 45,249.48 is: 62,467.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,198.86 : 80,344.80 = 45,249.48 : x
  2. Step 2: Convert to fraction form
    58,198.86/80,344.80 = 45,249.48/x
  3. Step 3: Cross multiply
    58,198.86x = 80,344.80 × 45,249.48
  4. Step 4: Simplify right side
    58,198.86x = 3,635,560,420.70
  5. Step 5: Solve for x
    x = 3,635,560,420.70/58,198.86
  6. Step 6: Final answer
    x = 62,467.90

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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.