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Finding the Fourth Proportional to 321,696.15, 482,052.14 and 171,957.72

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Solution

The fourth proportional to 321,696.15, 482,052.14 and 171,957.72 is: 257,673.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,696.15 : 482,052.14 = 171,957.72 : x
  2. Step 2: Convert to fraction form
    321,696.15/482,052.14 = 171,957.72/x
  3. Step 3: Cross multiply
    321,696.15x = 482,052.14 × 171,957.72
  4. Step 4: Simplify right side
    321,696.15x = 82,892,586,915.52
  5. Step 5: Solve for x
    x = 82,892,586,915.52/321,696.15
  6. Step 6: Final answer
    x = 257,673.54

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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.