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Finding the Fourth Proportional to 136,449.01, 204,447.24 and 82,979.25

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Solution

The fourth proportional to 136,449.01, 204,447.24 and 82,979.25 is: 124,331.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,449.01 : 204,447.24 = 82,979.25 : x
  2. Step 2: Convert to fraction form
    136,449.01/204,447.24 = 82,979.25/x
  3. Step 3: Cross multiply
    136,449.01x = 204,447.24 × 82,979.25
  4. Step 4: Simplify right side
    136,449.01x = 16,964,878,639.77
  5. Step 5: Solve for x
    x = 16,964,878,639.77/136,449.01
  6. Step 6: Final answer
    x = 124,331.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.