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Finding the Fourth Proportional to 170,825.80, 256,238.70 and 168,201.40

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Solution

The fourth proportional to 170,825.80, 256,238.70 and 168,201.40 is: 252,302.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,825.80 : 256,238.70 = 168,201.40 : x
  2. Step 2: Convert to fraction form
    170,825.80/256,238.70 = 168,201.40/x
  3. Step 3: Cross multiply
    170,825.80x = 256,238.70 × 168,201.40
  4. Step 4: Simplify right side
    170,825.80x = 43,099,708,074.18
  5. Step 5: Solve for x
    x = 43,099,708,074.18/170,825.80
  6. Step 6: Final answer
    x = 252,302.10

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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.