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Finding the Fourth Proportional to 451,817.76, 677,835.99 and 136,255.53

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Solution

The fourth proportional to 451,817.76, 677,835.99 and 136,255.53 is: 204,416.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,817.76 : 677,835.99 = 136,255.53 : x
  2. Step 2: Convert to fraction form
    451,817.76/677,835.99 = 136,255.53/x
  3. Step 3: Cross multiply
    451,817.76x = 677,835.99 × 136,255.53
  4. Step 4: Simplify right side
    451,817.76x = 92,358,902,070.52
  5. Step 5: Solve for x
    x = 92,358,902,070.52/451,817.76
  6. Step 6: Final answer
    x = 204,416.27

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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.