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Finding the Fourth Proportional to 168,613.60, 252,934.80 and 57,805.60

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Solution

The fourth proportional to 168,613.60, 252,934.80 and 57,805.60 is: 86,713.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,613.60 : 252,934.80 = 57,805.60 : x
  2. Step 2: Convert to fraction form
    168,613.60/252,934.80 = 57,805.60/x
  3. Step 3: Cross multiply
    168,613.60x = 252,934.80 × 57,805.60
  4. Step 4: Simplify right side
    168,613.60x = 14,621,047,874.88
  5. Step 5: Solve for x
    x = 14,621,047,874.88/168,613.60
  6. Step 6: Final answer
    x = 86,713.34

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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.