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Finding the Fourth Proportional to 168,811.44, 253,123.72 and 69,041.68

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Solution

The fourth proportional to 168,811.44, 253,123.72 and 69,041.68 is: 103,524.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,811.44 : 253,123.72 = 69,041.68 : x
  2. Step 2: Convert to fraction form
    168,811.44/253,123.72 = 69,041.68/x
  3. Step 3: Cross multiply
    168,811.44x = 253,123.72 × 69,041.68
  4. Step 4: Simplify right side
    168,811.44x = 17,476,086,876.65
  5. Step 5: Solve for x
    x = 17,476,086,876.65/168,811.44
  6. Step 6: Final answer
    x = 103,524.30

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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.