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Finding the Fourth Proportional to 170,736.40, 256,104.60 and 159,072.40

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Solution

The fourth proportional to 170,736.40, 256,104.60 and 159,072.40 is: 238,608.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,736.40 : 256,104.60 = 159,072.40 : x
  2. Step 2: Convert to fraction form
    170,736.40/256,104.60 = 159,072.40/x
  3. Step 3: Cross multiply
    170,736.40x = 256,104.60 × 159,072.40
  4. Step 4: Simplify right side
    170,736.40x = 40,739,173,373.04
  5. Step 5: Solve for x
    x = 40,739,173,373.04/170,736.40
  6. Step 6: Final answer
    x = 238,608.60

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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.