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Finding the Fourth Proportional to 351,124.61, 484,553.63 and 198,169.25

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Solution

The fourth proportional to 351,124.61, 484,553.63 and 198,169.25 is: 273,474.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,124.61 : 484,553.63 = 198,169.25 : x
  2. Step 2: Convert to fraction form
    351,124.61/484,553.63 = 198,169.25/x
  3. Step 3: Cross multiply
    351,124.61x = 484,553.63 × 198,169.25
  4. Step 4: Simplify right side
    351,124.61x = 96,023,629,662.42
  5. Step 5: Solve for x
    x = 96,023,629,662.42/351,124.61
  6. Step 6: Final answer
    x = 273,474.51

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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.