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Finding the Fourth Proportional to 361,817.28, 542,751.90 and 95,575.20

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Solution

The fourth proportional to 361,817.28, 542,751.90 and 95,575.20 is: 143,369.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,817.28 : 542,751.90 = 95,575.20 : x
  2. Step 2: Convert to fraction form
    361,817.28/542,751.90 = 95,575.20/x
  3. Step 3: Cross multiply
    361,817.28x = 542,751.90 × 95,575.20
  4. Step 4: Simplify right side
    361,817.28x = 51,873,621,392.88
  5. Step 5: Solve for x
    x = 51,873,621,392.88/361,817.28
  6. Step 6: Final answer
    x = 143,369.66

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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.