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Finding the Fourth Proportional to 89,682.89, 134,531.28 and 36,349.48

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Solution

The fourth proportional to 89,682.89, 134,531.28 and 36,349.48 is: 54,527.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,682.89 : 134,531.28 = 36,349.48 : x
  2. Step 2: Convert to fraction form
    89,682.89/134,531.28 = 36,349.48/x
  3. Step 3: Cross multiply
    89,682.89x = 134,531.28 × 36,349.48
  4. Step 4: Simplify right side
    89,682.89x = 4,890,142,239.90
  5. Step 5: Solve for x
    x = 4,890,142,239.90/89,682.89
  6. Step 6: Final answer
    x = 54,527.04

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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.