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Finding the Fourth Proportional to 192,818, 266,074.26 and 106,776.56

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Solution

The fourth proportional to 192,818, 266,074.26 and 106,776.56 is: 147,343.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,818 : 266,074.26 = 106,776.56 : x
  2. Step 2: Convert to fraction form
    192,818/266,074.26 = 106,776.56/x
  3. Step 3: Cross multiply
    192,818x = 266,074.26 × 106,776.56
  4. Step 4: Simplify right side
    192,818x = 28,410,494,187.35
  5. Step 5: Solve for x
    x = 28,410,494,187.35/192,818
  6. Step 6: Final answer
    x = 147,343.58

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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.