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Finding the Fourth Proportional to 320,591.17, 442,428.83 and 177,348.74

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Solution

The fourth proportional to 320,591.17, 442,428.83 and 177,348.74 is: 244,748.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,591.17 : 442,428.83 = 177,348.74 : x
  2. Step 2: Convert to fraction form
    320,591.17/442,428.83 = 177,348.74/x
  3. Step 3: Cross multiply
    320,591.17x = 442,428.83 × 177,348.74
  4. Step 4: Simplify right side
    320,591.17x = 78,464,195,540.17
  5. Step 5: Solve for x
    x = 78,464,195,540.17/320,591.17
  6. Step 6: Final answer
    x = 244,748.46

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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.