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Finding the Fourth Proportional to 330,228.56, 455,717.94 and 179,325.56

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Solution

The fourth proportional to 330,228.56, 455,717.94 and 179,325.56 is: 247,470.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,228.56 : 455,717.94 = 179,325.56 : x
  2. Step 2: Convert to fraction form
    330,228.56/455,717.94 = 179,325.56/x
  3. Step 3: Cross multiply
    330,228.56x = 455,717.94 × 179,325.56
  4. Step 4: Simplify right side
    330,228.56x = 81,721,874,792.55
  5. Step 5: Solve for x
    x = 81,721,874,792.55/330,228.56
  6. Step 6: Final answer
    x = 247,470.65

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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.