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Finding the Fourth Proportional to 353,969.60, 531,568.80 and 188,081.60

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Solution

The fourth proportional to 353,969.60, 531,568.80 and 188,081.60 is: 282,448.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,969.60 : 531,568.80 = 188,081.60 : x
  2. Step 2: Convert to fraction form
    353,969.60/531,568.80 = 188,081.60/x
  3. Step 3: Cross multiply
    353,969.60x = 531,568.80 × 188,081.60
  4. Step 4: Simplify right side
    353,969.60x = 99,978,310,414.08
  5. Step 5: Solve for x
    x = 99,978,310,414.08/353,969.60
  6. Step 6: Final answer
    x = 282,448.86

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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.