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Finding the Fourth Proportional to 491,054.47, 736,579.68 and 136,067.47

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Solution

The fourth proportional to 491,054.47, 736,579.68 and 136,067.47 is: 204,100.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,054.47 : 736,579.68 = 136,067.47 : x
  2. Step 2: Convert to fraction form
    491,054.47/736,579.68 = 136,067.47/x
  3. Step 3: Cross multiply
    491,054.47x = 736,579.68 × 136,067.47
  4. Step 4: Simplify right side
    491,054.47x = 100,224,533,511.01
  5. Step 5: Solve for x
    x = 100,224,533,511.01/491,054.47
  6. Step 6: Final answer
    x = 204,100.64

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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.