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Finding the Fourth Proportional to 168,456.50, 252,721.06 and 48,512.64

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Solution

The fourth proportional to 168,456.50, 252,721.06 and 48,512.64 is: 72,779.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,456.50 : 252,721.06 = 48,512.64 : x
  2. Step 2: Convert to fraction form
    168,456.50/252,721.06 = 48,512.64/x
  3. Step 3: Cross multiply
    168,456.50x = 252,721.06 × 48,512.64
  4. Step 4: Simplify right side
    168,456.50x = 12,260,165,682.92
  5. Step 5: Solve for x
    x = 12,260,165,682.92/168,456.50
  6. Step 6: Final answer
    x = 72,779.42

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1.5x scale

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.