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Finding the Fourth Proportional to 169,604.20, 254,443.20 and 51,272.45

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Solution

The fourth proportional to 169,604.20, 254,443.20 and 51,272.45 is: 76,919.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,604.20 : 254,443.20 = 51,272.45 : x
  2. Step 2: Convert to fraction form
    169,604.20/254,443.20 = 51,272.45/x
  3. Step 3: Cross multiply
    169,604.20x = 254,443.20 × 51,272.45
  4. Step 4: Simplify right side
    169,604.20x = 13,045,926,249.84
  5. Step 5: Solve for x
    x = 13,045,926,249.84/169,604.20
  6. Step 6: Final answer
    x = 76,919.83

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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.