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Finding the Fourth Proportional to 199,338.84, 275,093.15 and 121,827.04

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Solution

The fourth proportional to 199,338.84, 275,093.15 and 121,827.04 is: 168,124.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,338.84 : 275,093.15 = 121,827.04 : x
  2. Step 2: Convert to fraction form
    199,338.84/275,093.15 = 121,827.04/x
  3. Step 3: Cross multiply
    199,338.84x = 275,093.15 × 121,827.04
  4. Step 4: Simplify right side
    199,338.84x = 33,513,782,891.91
  5. Step 5: Solve for x
    x = 33,513,782,891.91/199,338.84
  6. Step 6: Final answer
    x = 168,124.70

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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.