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Finding the Fourth Proportional to 248,879.70, 373,319.55 and 71,404.65

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Solution

The fourth proportional to 248,879.70, 373,319.55 and 71,404.65 is: 107,106.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,879.70 : 373,319.55 = 71,404.65 : x
  2. Step 2: Convert to fraction form
    248,879.70/373,319.55 = 71,404.65/x
  3. Step 3: Cross multiply
    248,879.70x = 373,319.55 × 71,404.65
  4. Step 4: Simplify right side
    248,879.70x = 26,656,751,805.91
  5. Step 5: Solve for x
    x = 26,656,751,805.91/248,879.70
  6. Step 6: Final answer
    x = 107,106.98

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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.