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Finding the Fourth Proportional to 240,636.72, 361,309.86 and 134,228.58

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Solution

The fourth proportional to 240,636.72, 361,309.86 and 134,228.58 is: 201,540.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,636.72 : 361,309.86 = 134,228.58 : x
  2. Step 2: Convert to fraction form
    240,636.72/361,309.86 = 134,228.58/x
  3. Step 3: Cross multiply
    240,636.72x = 361,309.86 × 134,228.58
  4. Step 4: Simplify right side
    240,636.72x = 48,498,109,447.80
  5. Step 5: Solve for x
    x = 48,498,109,447.80/240,636.72
  6. Step 6: Final answer
    x = 201,540.77

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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.