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Finding the Fourth Proportional to 351,157.95, 484,599.65 and 198,202.61

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Solution

The fourth proportional to 351,157.95, 484,599.65 and 198,202.61 is: 273,520.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,157.95 : 484,599.65 = 198,202.61 : x
  2. Step 2: Convert to fraction form
    351,157.95/484,599.65 = 198,202.61/x
  3. Step 3: Cross multiply
    351,157.95x = 484,599.65 × 198,202.61
  4. Step 4: Simplify right side
    351,157.95x = 96,048,915,655.57
  5. Step 5: Solve for x
    x = 96,048,915,655.57/351,157.95
  6. Step 6: Final answer
    x = 273,520.55

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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.