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Finding the Fourth Proportional to 68,791.66, 94,892.27 and 43,257.60

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Solution

The fourth proportional to 68,791.66, 94,892.27 and 43,257.60 is: 59,670.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,791.66 : 94,892.27 = 43,257.60 : x
  2. Step 2: Convert to fraction form
    68,791.66/94,892.27 = 43,257.60/x
  3. Step 3: Cross multiply
    68,791.66x = 94,892.27 × 43,257.60
  4. Step 4: Simplify right side
    68,791.66x = 4,104,811,642.46
  5. Step 5: Solve for x
    x = 4,104,811,642.46/68,791.66
  6. Step 6: Final answer
    x = 59,670.20

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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.