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Finding the Fourth Proportional to 361,872.52, 542,662.92 and 109,074.76

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Solution

The fourth proportional to 361,872.52, 542,662.92 and 109,074.76 is: 163,568.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,872.52 : 542,662.92 = 109,074.76 : x
  2. Step 2: Convert to fraction form
    361,872.52/542,662.92 = 109,074.76/x
  3. Step 3: Cross multiply
    361,872.52x = 542,662.92 × 109,074.76
  4. Step 4: Simplify right side
    361,872.52x = 59,190,827,759.90
  5. Step 5: Solve for x
    x = 59,190,827,759.90/361,872.52
  6. Step 6: Final answer
    x = 163,568.18

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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.