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Finding the Fourth Proportional to 101,242.44, 151,755.75 and 76,205.07

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Solution

The fourth proportional to 101,242.44, 151,755.75 and 76,205.07 is: 114,226.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,242.44 : 151,755.75 = 76,205.07 : x
  2. Step 2: Convert to fraction form
    101,242.44/151,755.75 = 76,205.07/x
  3. Step 3: Cross multiply
    101,242.44x = 151,755.75 × 76,205.07
  4. Step 4: Simplify right side
    101,242.44x = 11,564,557,551.65
  5. Step 5: Solve for x
    x = 11,564,557,551.65/101,242.44
  6. Step 6: Final answer
    x = 114,226.38

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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.