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Finding the Fourth Proportional to 170,898.47, 256,181.09 and 68,285.22

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Solution

The fourth proportional to 170,898.47, 256,181.09 and 68,285.22 is: 102,361.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,898.47 : 256,181.09 = 68,285.22 : x
  2. Step 2: Convert to fraction form
    170,898.47/256,181.09 = 68,285.22/x
  3. Step 3: Cross multiply
    170,898.47x = 256,181.09 × 68,285.22
  4. Step 4: Simplify right side
    170,898.47x = 17,493,380,788.38
  5. Step 5: Solve for x
    x = 17,493,380,788.38/170,898.47
  6. Step 6: Final answer
    x = 102,361.25

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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.