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Finding the Fourth Proportional to 192,859.92, 266,134.74 and 106,817.55

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Solution

The fourth proportional to 192,859.92, 266,134.74 and 106,817.55 is: 147,401.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,859.92 : 266,134.74 = 106,817.55 : x
  2. Step 2: Convert to fraction form
    192,859.92/266,134.74 = 106,817.55/x
  3. Step 3: Cross multiply
    192,859.92x = 266,134.74 × 106,817.55
  4. Step 4: Simplify right side
    192,859.92x = 28,427,860,896.69
  5. Step 5: Solve for x
    x = 28,427,860,896.69/192,859.92
  6. Step 6: Final answer
    x = 147,401.60

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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.