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Finding the Fourth Proportional to 136,855.44, 206,335.92 and 134,406

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Solution

The fourth proportional to 136,855.44, 206,335.92 and 134,406 is: 202,642.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,855.44 : 206,335.92 = 134,406 : x
  2. Step 2: Convert to fraction form
    136,855.44/206,335.92 = 134,406/x
  3. Step 3: Cross multiply
    136,855.44x = 206,335.92 × 134,406
  4. Step 4: Simplify right side
    136,855.44x = 27,732,785,663.52
  5. Step 5: Solve for x
    x = 27,732,785,663.52/136,855.44
  6. Step 6: Final answer
    x = 202,642.92

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.