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Finding the Fourth Proportional to 169,463.22, 253,885 and 79,340.60

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Solution

The fourth proportional to 169,463.22, 253,885 and 79,340.60 is: 118,865.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,463.22 : 253,885 = 79,340.60 : x
  2. Step 2: Convert to fraction form
    169,463.22/253,885 = 79,340.60/x
  3. Step 3: Cross multiply
    169,463.22x = 253,885 × 79,340.60
  4. Step 4: Simplify right side
    169,463.22x = 20,143,388,231
  5. Step 5: Solve for x
    x = 20,143,388,231/169,463.22
  6. Step 6: Final answer
    x = 118,865.84

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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.