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Finding the Fourth Proportional to 123,860.92, 170,927.94 and 67,272.34

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Solution

The fourth proportional to 123,860.92, 170,927.94 and 67,272.34 is: 92,835.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,860.92 : 170,927.94 = 67,272.34 : x
  2. Step 2: Convert to fraction form
    123,860.92/170,927.94 = 67,272.34/x
  3. Step 3: Cross multiply
    123,860.92x = 170,927.94 × 67,272.34
  4. Step 4: Simplify right side
    123,860.92x = 11,498,722,495.18
  5. Step 5: Solve for x
    x = 11,498,722,495.18/123,860.92
  6. Step 6: Final answer
    x = 92,835.76

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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.