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Finding the Fourth Proportional to 491,398.22, 737,101.43 and 136,439.92

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Solution

The fourth proportional to 491,398.22, 737,101.43 and 136,439.92 is: 204,661.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,398.22 : 737,101.43 = 136,439.92 : x
  2. Step 2: Convert to fraction form
    491,398.22/737,101.43 = 136,439.92/x
  3. Step 3: Cross multiply
    491,398.22x = 737,101.43 × 136,439.92
  4. Step 4: Simplify right side
    491,398.22x = 100,570,055,773.38
  5. Step 5: Solve for x
    x = 100,570,055,773.38/491,398.22
  6. Step 6: Final answer
    x = 204,661.01

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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.