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Finding the Fourth Proportional to 101,120.40, 151,724.34 and 41,969.34

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Solution

The fourth proportional to 101,120.40, 151,724.34 and 41,969.34 is: 62,972.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,120.40 : 151,724.34 = 41,969.34 : x
  2. Step 2: Convert to fraction form
    101,120.40/151,724.34 = 41,969.34/x
  3. Step 3: Cross multiply
    101,120.40x = 151,724.34 × 41,969.34
  4. Step 4: Simplify right side
    101,120.40x = 6,367,770,411.74
  5. Step 5: Solve for x
    x = 6,367,770,411.74/101,120.40
  6. Step 6: Final answer
    x = 62,972.16

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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.