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Finding the Fourth Proportional to 168,613.22, 253,044.56 and 79,866.92

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Solution

The fourth proportional to 168,613.22, 253,044.56 and 79,866.92 is: 119,859.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,613.22 : 253,044.56 = 79,866.92 : x
  2. Step 2: Convert to fraction form
    168,613.22/253,044.56 = 79,866.92/x
  3. Step 3: Cross multiply
    168,613.22x = 253,044.56 × 79,866.92
  4. Step 4: Simplify right side
    168,613.22x = 20,209,890,262.57
  5. Step 5: Solve for x
    x = 20,209,890,262.57/168,613.22
  6. Step 6: Final answer
    x = 119,859.46

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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.