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Finding the Fourth Proportional to 196,377.40, 270,930.18 and 124,773.40

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Solution

The fourth proportional to 196,377.40, 270,930.18 and 124,773.40 is: 172,142.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,377.40 : 270,930.18 = 124,773.40 : x
  2. Step 2: Convert to fraction form
    196,377.40/270,930.18 = 124,773.40/x
  3. Step 3: Cross multiply
    196,377.40x = 270,930.18 × 124,773.40
  4. Step 4: Simplify right side
    196,377.40x = 33,804,879,721.21
  5. Step 5: Solve for x
    x = 33,804,879,721.21/196,377.40
  6. Step 6: Final answer
    x = 172,142.41

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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.