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Finding the Fourth Proportional to 496,613.20, 744,919.80 and 122,636.20

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Solution

The fourth proportional to 496,613.20, 744,919.80 and 122,636.20 is: 183,954.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,613.20 : 744,919.80 = 122,636.20 : x
  2. Step 2: Convert to fraction form
    496,613.20/744,919.80 = 122,636.20/x
  3. Step 3: Cross multiply
    496,613.20x = 744,919.80 × 122,636.20
  4. Step 4: Simplify right side
    496,613.20x = 91,354,133,576.76
  5. Step 5: Solve for x
    x = 91,354,133,576.76/496,613.20
  6. Step 6: Final answer
    x = 183,954.30

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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.