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Finding the Fourth Proportional to 171,358.52, 257,203.89 and 82,674.32

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Solution

The fourth proportional to 171,358.52, 257,203.89 and 82,674.32 is: 124,091.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,358.52 : 257,203.89 = 82,674.32 : x
  2. Step 2: Convert to fraction form
    171,358.52/257,203.89 = 82,674.32/x
  3. Step 3: Cross multiply
    171,358.52x = 257,203.89 × 82,674.32
  4. Step 4: Simplify right side
    171,358.52x = 21,264,155,421.09
  5. Step 5: Solve for x
    x = 21,264,155,421.09/171,358.52
  6. Step 6: Final answer
    x = 124,091.62

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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.