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Finding the Fourth Proportional to 192,999.50, 266,335.47 and 106,956.69

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Solution

The fourth proportional to 192,999.50, 266,335.47 and 106,956.69 is: 147,598.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,999.50 : 266,335.47 = 106,956.69 : x
  2. Step 2: Convert to fraction form
    192,999.50/266,335.47 = 106,956.69/x
  3. Step 3: Cross multiply
    192,999.50x = 266,335.47 × 106,956.69
  4. Step 4: Simplify right side
    192,999.50x = 28,486,361,770.43
  5. Step 5: Solve for x
    x = 28,486,361,770.43/192,999.50
  6. Step 6: Final answer
    x = 147,598.11

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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.