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Finding the Fourth Proportional to 168,590.20, 252,885.30 and 43,931.20

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Solution

The fourth proportional to 168,590.20, 252,885.30 and 43,931.20 is: 65,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,590.20 : 252,885.30 = 43,931.20 : x
  2. Step 2: Convert to fraction form
    168,590.20/252,885.30 = 43,931.20/x
  3. Step 3: Cross multiply
    168,590.20x = 252,885.30 × 43,931.20
  4. Step 4: Simplify right side
    168,590.20x = 11,109,554,691.36
  5. Step 5: Solve for x
    x = 11,109,554,691.36/168,590.20
  6. Step 6: Final answer
    x = 65,896.80

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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.