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Finding the Fourth Proportional to 221,614.97, 332,608.43 and 115,064.33

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Solution

The fourth proportional to 221,614.97, 332,608.43 and 115,064.33 is: 172,693.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,614.97 : 332,608.43 = 115,064.33 : x
  2. Step 2: Convert to fraction form
    221,614.97/332,608.43 = 115,064.33/x
  3. Step 3: Cross multiply
    221,614.97x = 332,608.43 × 115,064.33
  4. Step 4: Simplify right side
    221,614.97x = 38,271,363,911.94
  5. Step 5: Solve for x
    x = 38,271,363,911.94/221,614.97
  6. Step 6: Final answer
    x = 172,693.05

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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.