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Finding the Fourth Proportional to 351,074.98, 484,482.81 and 189,930.16

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Solution

The fourth proportional to 351,074.98, 484,482.81 and 189,930.16 is: 262,103.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,074.98 : 484,482.81 = 189,930.16 : x
  2. Step 2: Convert to fraction form
    351,074.98/484,482.81 = 189,930.16/x
  3. Step 3: Cross multiply
    351,074.98x = 484,482.81 × 189,930.16
  4. Step 4: Simplify right side
    351,074.98x = 92,017,897,620.55
  5. Step 5: Solve for x
    x = 92,017,897,620.55/351,074.98
  6. Step 6: Final answer
    x = 262,103.26

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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.