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Finding the Fourth Proportional to 171,356.27, 257,200.52 and 82,672.07

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Solution

The fourth proportional to 171,356.27, 257,200.52 and 82,672.07 is: 124,088.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,356.27 : 257,200.52 = 82,672.07 : x
  2. Step 2: Convert to fraction form
    171,356.27/257,200.52 = 82,672.07/x
  3. Step 3: Cross multiply
    171,356.27x = 257,200.52 × 82,672.07
  4. Step 4: Simplify right side
    171,356.27x = 21,263,297,694.11
  5. Step 5: Solve for x
    x = 21,263,297,694.11/171,356.27
  6. Step 6: Final answer
    x = 124,088.24

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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.