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Finding the Fourth Proportional to 165,736.40, 248,604.60 and 120,635.60

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Solution

The fourth proportional to 165,736.40, 248,604.60 and 120,635.60 is: 180,953.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,736.40 : 248,604.60 = 120,635.60 : x
  2. Step 2: Convert to fraction form
    165,736.40/248,604.60 = 120,635.60/x
  3. Step 3: Cross multiply
    165,736.40x = 248,604.60 × 120,635.60
  4. Step 4: Simplify right side
    165,736.40x = 29,990,565,083.76
  5. Step 5: Solve for x
    x = 29,990,565,083.76/165,736.40
  6. Step 6: Final answer
    x = 180,953.40

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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.