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Finding the Fourth Proportional to 351,321.48, 526,818.15 and 126,652.32

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Solution

The fourth proportional to 351,321.48, 526,818.15 and 126,652.32 is: 189,919.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,321.48 : 526,818.15 = 126,652.32 : x
  2. Step 2: Convert to fraction form
    351,321.48/526,818.15 = 126,652.32/x
  3. Step 3: Cross multiply
    351,321.48x = 526,818.15 × 126,652.32
  4. Step 4: Simplify right side
    351,321.48x = 66,722,740,915.61
  5. Step 5: Solve for x
    x = 66,722,740,915.61/351,321.48
  6. Step 6: Final answer
    x = 189,919.33

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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.