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Finding the Fourth Proportional to 105,800.40, 158,696.10 and 35,679.60

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Solution

The fourth proportional to 105,800.40, 158,696.10 and 35,679.60 is: 53,517.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,800.40 : 158,696.10 = 35,679.60 : x
  2. Step 2: Convert to fraction form
    105,800.40/158,696.10 = 35,679.60/x
  3. Step 3: Cross multiply
    105,800.40x = 158,696.10 × 35,679.60
  4. Step 4: Simplify right side
    105,800.40x = 5,662,213,369.56
  5. Step 5: Solve for x
    x = 5,662,213,369.56/105,800.40
  6. Step 6: Final answer
    x = 53,517.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.