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Finding the Fourth Proportional to 352,086.72, 485,871.12 and 201,174

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Solution

The fourth proportional to 352,086.72, 485,871.12 and 201,174 is: 277,615.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,086.72 : 485,871.12 = 201,174 : x
  2. Step 2: Convert to fraction form
    352,086.72/485,871.12 = 201,174/x
  3. Step 3: Cross multiply
    352,086.72x = 485,871.12 × 201,174
  4. Step 4: Simplify right side
    352,086.72x = 97,744,636,694.88
  5. Step 5: Solve for x
    x = 97,744,636,694.88/352,086.72
  6. Step 6: Final answer
    x = 277,615.23

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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.