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Finding the Fourth Proportional to 171,694.80, 257,542.20 and 164,696.40

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Solution

The fourth proportional to 171,694.80, 257,542.20 and 164,696.40 is: 247,044.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,694.80 : 257,542.20 = 164,696.40 : x
  2. Step 2: Convert to fraction form
    171,694.80/257,542.20 = 164,696.40/x
  3. Step 3: Cross multiply
    171,694.80x = 257,542.20 × 164,696.40
  4. Step 4: Simplify right side
    171,694.80x = 42,416,273,188.08
  5. Step 5: Solve for x
    x = 42,416,273,188.08/171,694.80
  6. Step 6: Final answer
    x = 247,044.60

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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.