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Finding the Fourth Proportional to 169,321.44, 254,098.80 and 75,931.68

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Solution

The fourth proportional to 169,321.44, 254,098.80 and 75,931.68 is: 113,949.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,321.44 : 254,098.80 = 75,931.68 : x
  2. Step 2: Convert to fraction form
    169,321.44/254,098.80 = 75,931.68/x
  3. Step 3: Cross multiply
    169,321.44x = 254,098.80 × 75,931.68
  4. Step 4: Simplify right side
    169,321.44x = 19,294,148,769.98
  5. Step 5: Solve for x
    x = 19,294,148,769.98/169,321.44
  6. Step 6: Final answer
    x = 113,949.83

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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.