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Finding the Fourth Proportional to 168,782.30, 253,270.65 and 63,676.70

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Solution

The fourth proportional to 168,782.30, 253,270.65 and 63,676.70 is: 95,551.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,782.30 : 253,270.65 = 63,676.70 : x
  2. Step 2: Convert to fraction form
    168,782.30/253,270.65 = 63,676.70/x
  3. Step 3: Cross multiply
    168,782.30x = 253,270.65 × 63,676.70
  4. Step 4: Simplify right side
    168,782.30x = 16,127,439,198.86
  5. Step 5: Solve for x
    x = 16,127,439,198.86/168,782.30
  6. Step 6: Final answer
    x = 95,551.72

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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.