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Finding the Fourth Proportional to 418,204.20, 627,330.34 and 118,661.34

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Solution

The fourth proportional to 418,204.20, 627,330.34 and 118,661.34 is: 177,998.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,204.20 : 627,330.34 = 118,661.34 : x
  2. Step 2: Convert to fraction form
    418,204.20/627,330.34 = 118,661.34/x
  3. Step 3: Cross multiply
    418,204.20x = 627,330.34 × 118,661.34
  4. Step 4: Simplify right side
    418,204.20x = 74,439,858,767.06
  5. Step 5: Solve for x
    x = 74,439,858,767.06/418,204.20
  6. Step 6: Final answer
    x = 177,998.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.