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Finding the Fourth Proportional to 330,290.82, 455,803.66 and 179,387.82

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Solution

The fourth proportional to 330,290.82, 455,803.66 and 179,387.82 is: 247,556.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,290.82 : 455,803.66 = 179,387.82 : x
  2. Step 2: Convert to fraction form
    330,290.82/455,803.66 = 179,387.82/x
  3. Step 3: Cross multiply
    330,290.82x = 455,803.66 × 179,387.82
  4. Step 4: Simplify right side
    330,290.82x = 81,765,624,915.42
  5. Step 5: Solve for x
    x = 81,765,624,915.42/330,290.82
  6. Step 6: Final answer
    x = 247,556.46

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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.