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Finding the Fourth Proportional to 330,028.88, 455,440.52 and 179,126.48

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Solution

The fourth proportional to 330,028.88, 455,440.52 and 179,126.48 is: 247,194.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,028.88 : 455,440.52 = 179,126.48 : x
  2. Step 2: Convert to fraction form
    330,028.88/455,440.52 = 179,126.48/x
  3. Step 3: Cross multiply
    330,028.88x = 455,440.52 × 179,126.48
  4. Step 4: Simplify right side
    330,028.88x = 81,581,457,196.97
  5. Step 5: Solve for x
    x = 81,581,457,196.97/330,028.88
  6. Step 6: Final answer
    x = 247,194.90

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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.