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Finding the Fourth Proportional to 199,198.60, 274,894.13 and 108,554.59

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Solution

The fourth proportional to 199,198.60, 274,894.13 and 108,554.59 is: 149,805.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,198.60 : 274,894.13 = 108,554.59 : x
  2. Step 2: Convert to fraction form
    199,198.60/274,894.13 = 108,554.59/x
  3. Step 3: Cross multiply
    199,198.60x = 274,894.13 × 108,554.59
  4. Step 4: Simplify right side
    199,198.60x = 29,841,020,271.82
  5. Step 5: Solve for x
    x = 29,841,020,271.82/199,198.60
  6. Step 6: Final answer
    x = 149,805.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.