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Finding the Fourth Proportional to 123,959.26, 171,063.80 and 67,370.64

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Solution

The fourth proportional to 123,959.26, 171,063.80 and 67,370.64 is: 92,971.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,959.26 : 171,063.80 = 67,370.64 : x
  2. Step 2: Convert to fraction form
    123,959.26/171,063.80 = 67,370.64/x
  3. Step 3: Cross multiply
    123,959.26x = 171,063.80 × 67,370.64
  4. Step 4: Simplify right side
    123,959.26x = 11,524,676,961.13
  5. Step 5: Solve for x
    x = 11,524,676,961.13/123,959.26
  6. Step 6: Final answer
    x = 92,971.49

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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.