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Finding the Fourth Proportional to 101,513.89, 152,185.21 and 63,991.27

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Solution

The fourth proportional to 101,513.89, 152,185.21 and 63,991.27 is: 95,932.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,513.89 : 152,185.21 = 63,991.27 : x
  2. Step 2: Convert to fraction form
    101,513.89/152,185.21 = 63,991.27/x
  3. Step 3: Cross multiply
    101,513.89x = 152,185.21 × 63,991.27
  4. Step 4: Simplify right side
    101,513.89x = 9,738,525,253.32
  5. Step 5: Solve for x
    x = 9,738,525,253.32/101,513.89
  6. Step 6: Final answer
    x = 95,932.93

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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.