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Finding the Fourth Proportional to 330,229.56, 455,719.32 and 179,326.56

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Solution

The fourth proportional to 330,229.56, 455,719.32 and 179,326.56 is: 247,472.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,229.56 : 455,719.32 = 179,326.56 : x
  2. Step 2: Convert to fraction form
    330,229.56/455,719.32 = 179,326.56/x
  3. Step 3: Cross multiply
    330,229.56x = 455,719.32 × 179,326.56
  4. Step 4: Simplify right side
    330,229.56x = 81,722,577,981.14
  5. Step 5: Solve for x
    x = 81,722,577,981.14/330,229.56
  6. Step 6: Final answer
    x = 247,472.03

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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.