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Finding the Fourth Proportional to 199,274.68, 298,959.10 and 79,338.49

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Solution

The fourth proportional to 199,274.68, 298,959.10 and 79,338.49 is: 119,026.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,274.68 : 298,959.10 = 79,338.49 : x
  2. Step 2: Convert to fraction form
    199,274.68/298,959.10 = 79,338.49/x
  3. Step 3: Cross multiply
    199,274.68x = 298,959.10 × 79,338.49
  4. Step 4: Simplify right side
    199,274.68x = 23,718,963,066.29
  5. Step 5: Solve for x
    x = 23,718,963,066.29/199,274.68
  6. Step 6: Final answer
    x = 119,026.48

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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.