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Finding the Fourth Proportional to 136,693.80, 204,579.90 and 125,634.60

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Solution

The fourth proportional to 136,693.80, 204,579.90 and 125,634.60 is: 188,028.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,693.80 : 204,579.90 = 125,634.60 : x
  2. Step 2: Convert to fraction form
    136,693.80/204,579.90 = 125,634.60/x
  3. Step 3: Cross multiply
    136,693.80x = 204,579.90 × 125,634.60
  4. Step 4: Simplify right side
    136,693.80x = 25,702,313,904.54
  5. Step 5: Solve for x
    x = 25,702,313,904.54/136,693.80
  6. Step 6: Final answer
    x = 188,028.38

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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.