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Finding the Fourth Proportional to 361,142.62, 541,712.61 and 108,422.01

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Solution

The fourth proportional to 361,142.62, 541,712.61 and 108,422.01 is: 162,632.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,142.62 : 541,712.61 = 108,422.01 : x
  2. Step 2: Convert to fraction form
    361,142.62/541,712.61 = 108,422.01/x
  3. Step 3: Cross multiply
    361,142.62x = 541,712.61 × 108,422.01
  4. Step 4: Simplify right side
    361,142.62x = 58,733,570,018.55
  5. Step 5: Solve for x
    x = 58,733,570,018.55/361,142.62
  6. Step 6: Final answer
    x = 162,632.62

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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.