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Finding the Fourth Proportional to 123,858.74, 170,925.93 and 67,270.11

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Solution

The fourth proportional to 123,858.74, 170,925.93 and 67,270.11 is: 92,833.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,858.74 : 170,925.93 = 67,270.11 : x
  2. Step 2: Convert to fraction form
    123,858.74/170,925.93 = 67,270.11/x
  3. Step 3: Cross multiply
    123,858.74x = 170,925.93 × 67,270.11
  4. Step 4: Simplify right side
    123,858.74x = 11,498,206,112.95
  5. Step 5: Solve for x
    x = 11,498,206,112.95/123,858.74
  6. Step 6: Final answer
    x = 92,833.23

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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.