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Finding the Fourth Proportional to 170,826.30, 256,239.45 and 168,201.90

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Solution

The fourth proportional to 170,826.30, 256,239.45 and 168,201.90 is: 252,302.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,826.30 : 256,239.45 = 168,201.90 : x
  2. Step 2: Convert to fraction form
    170,826.30/256,239.45 = 168,201.90/x
  3. Step 3: Cross multiply
    170,826.30x = 256,239.45 × 168,201.90
  4. Step 4: Simplify right side
    170,826.30x = 43,099,962,344.96
  5. Step 5: Solve for x
    x = 43,099,962,344.96/170,826.30
  6. Step 6: Final answer
    x = 252,302.85

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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.