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Finding the Fourth Proportional to 117,233.68, 161,778.72 and 66,932.68

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Solution

The fourth proportional to 117,233.68, 161,778.72 and 66,932.68 is: 92,364.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,233.68 : 161,778.72 = 66,932.68 : x
  2. Step 2: Convert to fraction form
    117,233.68/161,778.72 = 66,932.68/x
  3. Step 3: Cross multiply
    117,233.68x = 161,778.72 × 66,932.68
  4. Step 4: Simplify right side
    117,233.68x = 10,828,283,296.57
  5. Step 5: Solve for x
    x = 10,828,283,296.57/117,233.68
  6. Step 6: Final answer
    x = 92,364.95

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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.