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Finding the Fourth Proportional to 204,039.60, 306,059.40 and 148,743.60

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Solution

The fourth proportional to 204,039.60, 306,059.40 and 148,743.60 is: 223,115.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,039.60 : 306,059.40 = 148,743.60 : x
  2. Step 2: Convert to fraction form
    204,039.60/306,059.40 = 148,743.60/x
  3. Step 3: Cross multiply
    204,039.60x = 306,059.40 × 148,743.60
  4. Step 4: Simplify right side
    204,039.60x = 45,524,376,969.84
  5. Step 5: Solve for x
    x = 45,524,376,969.84/204,039.60
  6. Step 6: Final answer
    x = 223,115.40

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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.