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Finding the Fourth Proportional to 220,194.73, 303,858.54 and 124,702.11

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Solution

The fourth proportional to 220,194.73, 303,858.54 and 124,702.11 is: 172,083.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,194.73 : 303,858.54 = 124,702.11 : x
  2. Step 2: Convert to fraction form
    220,194.73/303,858.54 = 124,702.11/x
  3. Step 3: Cross multiply
    220,194.73x = 303,858.54 × 124,702.11
  4. Step 4: Simplify right side
    220,194.73x = 37,891,801,079.52
  5. Step 5: Solve for x
    x = 37,891,801,079.52/220,194.73
  6. Step 6: Final answer
    x = 172,083.14

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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.