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Finding the Fourth Proportional to 361,518.10, 542,274.42 and 108,797.50

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Solution

The fourth proportional to 361,518.10, 542,274.42 and 108,797.50 is: 163,195.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,518.10 : 542,274.42 = 108,797.50 : x
  2. Step 2: Convert to fraction form
    361,518.10/542,274.42 = 108,797.50/x
  3. Step 3: Cross multiply
    361,518.10x = 542,274.42 × 108,797.50
  4. Step 4: Simplify right side
    361,518.10x = 58,998,101,209.95
  5. Step 5: Solve for x
    x = 58,998,101,209.95/361,518.10
  6. Step 6: Final answer
    x = 163,195.43

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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.