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Finding the Fourth Proportional to 123,536.52, 170,480.88 and 66,947.94

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Solution

The fourth proportional to 123,536.52, 170,480.88 and 66,947.94 is: 92,388.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,536.52 : 170,480.88 = 66,947.94 : x
  2. Step 2: Convert to fraction form
    123,536.52/170,480.88 = 66,947.94/x
  3. Step 3: Cross multiply
    123,536.52x = 170,480.88 × 66,947.94
  4. Step 4: Simplify right side
    123,536.52x = 11,413,343,725.39
  5. Step 5: Solve for x
    x = 11,413,343,725.39/123,536.52
  6. Step 6: Final answer
    x = 92,388.42

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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.