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Finding the Fourth Proportional to 187,403.85, 281,241.86 and 73,568.07

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Solution

The fourth proportional to 187,403.85, 281,241.86 and 73,568.07 is: 110,405.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,403.85 : 281,241.86 = 73,568.07 : x
  2. Step 2: Convert to fraction form
    187,403.85/281,241.86 = 73,568.07/x
  3. Step 3: Cross multiply
    187,403.85x = 281,241.86 × 73,568.07
  4. Step 4: Simplify right side
    187,403.85x = 20,690,420,475.57
  5. Step 5: Solve for x
    x = 20,690,420,475.57/187,403.85
  6. Step 6: Final answer
    x = 110,405.53

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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.