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Finding the Fourth Proportional to 170,039.80, 255,059.70 and 114,052.60

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Solution

The fourth proportional to 170,039.80, 255,059.70 and 114,052.60 is: 171,078.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,039.80 : 255,059.70 = 114,052.60 : x
  2. Step 2: Convert to fraction form
    170,039.80/255,059.70 = 114,052.60/x
  3. Step 3: Cross multiply
    170,039.80x = 255,059.70 × 114,052.60
  4. Step 4: Simplify right side
    170,039.80x = 29,090,221,940.22
  5. Step 5: Solve for x
    x = 29,090,221,940.22/170,039.80
  6. Step 6: Final answer
    x = 171,078.90

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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.