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Finding the Fourth Proportional to 225,891.40, 338,837.10 and 124,414.60

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Solution

The fourth proportional to 225,891.40, 338,837.10 and 124,414.60 is: 186,621.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,891.40 : 338,837.10 = 124,414.60 : x
  2. Step 2: Convert to fraction form
    225,891.40/338,837.10 = 124,414.60/x
  3. Step 3: Cross multiply
    225,891.40x = 338,837.10 × 124,414.60
  4. Step 4: Simplify right side
    225,891.40x = 42,156,282,261.66
  5. Step 5: Solve for x
    x = 42,156,282,261.66/225,891.40
  6. Step 6: Final answer
    x = 186,621.90

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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.