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Finding the Fourth Proportional to 192,978.82, 266,319.26 and 106,937.56

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Solution

The fourth proportional to 192,978.82, 266,319.26 and 106,937.56 is: 147,578.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,978.82 : 266,319.26 = 106,937.56 : x
  2. Step 2: Convert to fraction form
    192,978.82/266,319.26 = 106,937.56/x
  3. Step 3: Cross multiply
    192,978.82x = 266,319.26 × 106,937.56
  4. Step 4: Simplify right side
    192,978.82x = 28,479,532,044.63
  5. Step 5: Solve for x
    x = 28,479,532,044.63/192,978.82
  6. Step 6: Final answer
    x = 147,578.54

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1.5x scale

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.