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Finding the Fourth Proportional to 297,954.28, 411,181.40 and 161,987.92

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Solution

The fourth proportional to 297,954.28, 411,181.40 and 161,987.92 is: 223,545.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,954.28 : 411,181.40 = 161,987.92 : x
  2. Step 2: Convert to fraction form
    297,954.28/411,181.40 = 161,987.92/x
  3. Step 3: Cross multiply
    297,954.28x = 411,181.40 × 161,987.92
  4. Step 4: Simplify right side
    297,954.28x = 66,606,418,194.52
  5. Step 5: Solve for x
    x = 66,606,418,194.52/297,954.28
  6. Step 6: Final answer
    x = 223,545.77

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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.