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Finding the Fourth Proportional to 491,167.52, 736,751.31 and 136,181.55

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Solution

The fourth proportional to 491,167.52, 736,751.31 and 136,181.55 is: 204,272.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,167.52 : 736,751.31 = 136,181.55 : x
  2. Step 2: Convert to fraction form
    491,167.52/736,751.31 = 136,181.55/x
  3. Step 3: Cross multiply
    491,167.52x = 736,751.31 × 136,181.55
  4. Step 4: Simplify right side
    491,167.52x = 100,331,935,360.33
  5. Step 5: Solve for x
    x = 100,331,935,360.33/491,167.52
  6. Step 6: Final answer
    x = 204,272.33

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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.