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Finding the Fourth Proportional to 275,613.60, 413,128.80 and 107,068.80

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Solution

The fourth proportional to 275,613.60, 413,128.80 and 107,068.80 is: 160,489.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,613.60 : 413,128.80 = 107,068.80 : x
  2. Step 2: Convert to fraction form
    275,613.60/413,128.80 = 107,068.80/x
  3. Step 3: Cross multiply
    275,613.60x = 413,128.80 × 107,068.80
  4. Step 4: Simplify right side
    275,613.60x = 44,233,204,861.44
  5. Step 5: Solve for x
    x = 44,233,204,861.44/275,613.60
  6. Step 6: Final answer
    x = 160,489.92

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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.