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Finding the Fourth Proportional to 441,617.28, 662,436.80 and 161,134.48

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Solution

The fourth proportional to 441,617.28, 662,436.80 and 161,134.48 is: 241,705.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,617.28 : 662,436.80 = 161,134.48 : x
  2. Step 2: Convert to fraction form
    441,617.28/662,436.80 = 161,134.48/x
  3. Step 3: Cross multiply
    441,617.28x = 662,436.80 × 161,134.48
  4. Step 4: Simplify right side
    441,617.28x = 106,741,409,300.86
  5. Step 5: Solve for x
    x = 106,741,409,300.86/441,617.28
  6. Step 6: Final answer
    x = 241,705.69

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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.