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Finding the Fourth Proportional to 100,966.71, 151,450.08 and 34,372.56

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Solution

The fourth proportional to 100,966.71, 151,450.08 and 34,372.56 is: 51,558.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,966.71 : 151,450.08 = 34,372.56 : x
  2. Step 2: Convert to fraction form
    100,966.71/151,450.08 = 34,372.56/x
  3. Step 3: Cross multiply
    100,966.71x = 151,450.08 × 34,372.56
  4. Step 4: Simplify right side
    100,966.71x = 5,205,726,961.80
  5. Step 5: Solve for x
    x = 5,205,726,961.80/100,966.71
  6. Step 6: Final answer
    x = 51,558.85

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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.