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Finding the Fourth Proportional to 147,596.40, 203,691.60 and 111,729.60

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Solution

The fourth proportional to 147,596.40, 203,691.60 and 111,729.60 is: 154,193.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,596.40 : 203,691.60 = 111,729.60 : x
  2. Step 2: Convert to fraction form
    147,596.40/203,691.60 = 111,729.60/x
  3. Step 3: Cross multiply
    147,596.40x = 203,691.60 × 111,729.60
  4. Step 4: Simplify right side
    147,596.40x = 22,758,380,991.36
  5. Step 5: Solve for x
    x = 22,758,380,991.36/147,596.40
  6. Step 6: Final answer
    x = 154,193.33

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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.