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Finding the Fourth Proportional to 330,291.82, 455,805.04 and 179,388.82

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Solution

The fourth proportional to 330,291.82, 455,805.04 and 179,388.82 is: 247,557.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,291.82 : 455,805.04 = 179,388.82 : x
  2. Step 2: Convert to fraction form
    330,291.82/455,805.04 = 179,388.82/x
  3. Step 3: Cross multiply
    330,291.82x = 455,805.04 × 179,388.82
  4. Step 4: Simplify right side
    330,291.82x = 81,766,328,275.65
  5. Step 5: Solve for x
    x = 81,766,328,275.65/330,291.82
  6. Step 6: Final answer
    x = 247,557.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.