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Finding the Fourth Proportional to 298,218.33, 411,552.62 and 170,918.49

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Solution

The fourth proportional to 298,218.33, 411,552.62 and 170,918.49 is: 235,874.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,218.33 : 411,552.62 = 170,918.49 : x
  2. Step 2: Convert to fraction form
    298,218.33/411,552.62 = 170,918.49/x
  3. Step 3: Cross multiply
    298,218.33x = 411,552.62 × 170,918.49
  4. Step 4: Simplify right side
    298,218.33x = 70,341,951,511.35
  5. Step 5: Solve for x
    x = 70,341,951,511.35/298,218.33
  6. Step 6: Final answer
    x = 235,874.00

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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.