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Finding the Fourth Proportional to 403,680.88, 605,105.44 and 179,147.06

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Solution

The fourth proportional to 403,680.88, 605,105.44 and 179,147.06 is: 268,536.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,680.88 : 605,105.44 = 179,147.06 : x
  2. Step 2: Convert to fraction form
    403,680.88/605,105.44 = 179,147.06/x
  3. Step 3: Cross multiply
    403,680.88x = 605,105.44 × 179,147.06
  4. Step 4: Simplify right side
    403,680.88x = 108,402,857,764.41
  5. Step 5: Solve for x
    x = 108,402,857,764.41/403,680.88
  6. Step 6: Final answer
    x = 268,536.02

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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.