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Finding the Fourth Proportional to 248,716.80, 373,996.80 and 208,166.40

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Solution

The fourth proportional to 248,716.80, 373,996.80 and 208,166.40 is: 313,020.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,716.80 : 373,996.80 = 208,166.40 : x
  2. Step 2: Convert to fraction form
    248,716.80/373,996.80 = 208,166.40/x
  3. Step 3: Cross multiply
    248,716.80x = 373,996.80 × 208,166.40
  4. Step 4: Simplify right side
    248,716.80x = 77,853,567,467.52
  5. Step 5: Solve for x
    x = 77,853,567,467.52/248,716.80
  6. Step 6: Final answer
    x = 313,020.94

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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.