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Finding the Fourth Proportional to 222,162.52, 333,379.10 and 79,995.90

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Solution

The fourth proportional to 222,162.52, 333,379.10 and 79,995.90 is: 120,042.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,162.52 : 333,379.10 = 79,995.90 : x
  2. Step 2: Convert to fraction form
    222,162.52/333,379.10 = 79,995.90/x
  3. Step 3: Cross multiply
    222,162.52x = 333,379.10 × 79,995.90
  4. Step 4: Simplify right side
    222,162.52x = 26,668,962,595.85
  5. Step 5: Solve for x
    x = 26,668,962,595.85/222,162.52
  6. Step 6: Final answer
    x = 120,042.58

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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.