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Finding the Fourth Proportional to 101,310.75, 151,966.13 and 27,438.75

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Solution

The fourth proportional to 101,310.75, 151,966.13 and 27,438.75 is: 41,158.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,310.75 : 151,966.13 = 27,438.75 : x
  2. Step 2: Convert to fraction form
    101,310.75/151,966.13 = 27,438.75/x
  3. Step 3: Cross multiply
    101,310.75x = 151,966.13 × 27,438.75
  4. Step 4: Simplify right side
    101,310.75x = 4,169,760,512.34
  5. Step 5: Solve for x
    x = 4,169,760,512.34/101,310.75
  6. Step 6: Final answer
    x = 41,158.13

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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.