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Finding the Fourth Proportional to 169,103.70, 253,633.68 and 63,909

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Solution

The fourth proportional to 169,103.70, 253,633.68 and 63,909 is: 95,855.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,103.70 : 253,633.68 = 63,909 : x
  2. Step 2: Convert to fraction form
    169,103.70/253,633.68 = 63,909/x
  3. Step 3: Cross multiply
    169,103.70x = 253,633.68 × 63,909
  4. Step 4: Simplify right side
    169,103.70x = 16,209,474,855.12
  5. Step 5: Solve for x
    x = 16,209,474,855.12/169,103.70
  6. Step 6: Final answer
    x = 95,855.23

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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.