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Finding the Fourth Proportional to 168,779.85, 253,020.78 and 63,672.63

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Solution

The fourth proportional to 168,779.85, 253,020.78 and 63,672.63 is: 95,452.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,779.85 : 253,020.78 = 63,672.63 : x
  2. Step 2: Convert to fraction form
    168,779.85/253,020.78 = 63,672.63/x
  3. Step 3: Cross multiply
    168,779.85x = 253,020.78 × 63,672.63
  4. Step 4: Simplify right side
    168,779.85x = 16,110,498,507.25
  5. Step 5: Solve for x
    x = 16,110,498,507.25/168,779.85
  6. Step 6: Final answer
    x = 95,452.74

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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.