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Finding the Fourth Proportional to 106,375.59, 146,823.33 and 66,119.73

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Solution

The fourth proportional to 106,375.59, 146,823.33 and 66,119.73 is: 91,260.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,375.59 : 146,823.33 = 66,119.73 : x
  2. Step 2: Convert to fraction form
    106,375.59/146,823.33 = 66,119.73/x
  3. Step 3: Cross multiply
    106,375.59x = 146,823.33 × 66,119.73
  4. Step 4: Simplify right side
    106,375.59x = 9,707,918,937.30
  5. Step 5: Solve for x
    x = 9,707,918,937.30/106,375.59
  6. Step 6: Final answer
    x = 91,260.78

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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.