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Finding the Fourth Proportional to 526,992.92, 790,615.32 and 172,007.60

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Solution

The fourth proportional to 526,992.92, 790,615.32 and 172,007.60 is: 258,052.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,992.92 : 790,615.32 = 172,007.60 : x
  2. Step 2: Convert to fraction form
    526,992.92/790,615.32 = 172,007.60/x
  3. Step 3: Cross multiply
    526,992.92x = 790,615.32 × 172,007.60
  4. Step 4: Simplify right side
    526,992.92x = 135,991,843,716.43
  5. Step 5: Solve for x
    x = 135,991,843,716.43/526,992.92
  6. Step 6: Final answer
    x = 258,052.51

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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.