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Finding the Fourth Proportional to 168,653.45, 253,151.36 and 84,473.93

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Solution

The fourth proportional to 168,653.45, 253,151.36 and 84,473.93 is: 126,796.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,653.45 : 253,151.36 = 84,473.93 : x
  2. Step 2: Convert to fraction form
    168,653.45/253,151.36 = 84,473.93/x
  3. Step 3: Cross multiply
    168,653.45x = 253,151.36 × 84,473.93
  4. Step 4: Simplify right side
    168,653.45x = 21,384,689,841.68
  5. Step 5: Solve for x
    x = 21,384,689,841.68/168,653.45
  6. Step 6: Final answer
    x = 126,796.63

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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.