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Finding the Fourth Proportional to 65,185.92, 89,817.66 and 43,928.28

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Solution

The fourth proportional to 65,185.92, 89,817.66 and 43,928.28 is: 60,527.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,185.92 : 89,817.66 = 43,928.28 : x
  2. Step 2: Convert to fraction form
    65,185.92/89,817.66 = 43,928.28/x
  3. Step 3: Cross multiply
    65,185.92x = 89,817.66 × 43,928.28
  4. Step 4: Simplify right side
    65,185.92x = 3,945,535,317.42
  5. Step 5: Solve for x
    x = 3,945,535,317.42/65,185.92
  6. Step 6: Final answer
    x = 60,527.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.