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Finding the Fourth Proportional to 168,754.69, 253,256.63 and 80,008.46

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Solution

The fourth proportional to 168,754.69, 253,256.63 and 80,008.46 is: 120,071.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,754.69 : 253,256.63 = 80,008.46 : x
  2. Step 2: Convert to fraction form
    168,754.69/253,256.63 = 80,008.46/x
  3. Step 3: Cross multiply
    168,754.69x = 253,256.63 × 80,008.46
  4. Step 4: Simplify right side
    168,754.69x = 20,262,672,234.48
  5. Step 5: Solve for x
    x = 20,262,672,234.48/168,754.69
  6. Step 6: Final answer
    x = 120,071.76

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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.