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Finding the Fourth Proportional to 89,536.53, 123,466.60 and 66,839.12

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Solution

The fourth proportional to 89,536.53, 123,466.60 and 66,839.12 is: 92,167.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,536.53 : 123,466.60 = 66,839.12 : x
  2. Step 2: Convert to fraction form
    89,536.53/123,466.60 = 66,839.12/x
  3. Step 3: Cross multiply
    89,536.53x = 123,466.60 × 66,839.12
  4. Step 4: Simplify right side
    89,536.53x = 8,252,398,108.96
  5. Step 5: Solve for x
    x = 8,252,398,108.96/89,536.53
  6. Step 6: Final answer
    x = 92,167.95

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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.