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Finding the Fourth Proportional to 135,930.60, 190,696.50 and 135,930.60

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Solution

The fourth proportional to 135,930.60, 190,696.50 and 135,930.60 is: 190,696.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,930.60 : 190,696.50 = 135,930.60 : x
  2. Step 2: Convert to fraction form
    135,930.60/190,696.50 = 135,930.60/x
  3. Step 3: Cross multiply
    135,930.60x = 190,696.50 × 135,930.60
  4. Step 4: Simplify right side
    135,930.60x = 25,921,489,662.90
  5. Step 5: Solve for x
    x = 25,921,489,662.90/135,930.60
  6. Step 6: Final answer
    x = 190,696.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.