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Finding the Fourth Proportional to 204,023.40, 306,035.10 and 79,364.40

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Solution

The fourth proportional to 204,023.40, 306,035.10 and 79,364.40 is: 119,046.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,023.40 : 306,035.10 = 79,364.40 : x
  2. Step 2: Convert to fraction form
    204,023.40/306,035.10 = 79,364.40/x
  3. Step 3: Cross multiply
    204,023.40x = 306,035.10 × 79,364.40
  4. Step 4: Simplify right side
    204,023.40x = 24,288,292,090.44
  5. Step 5: Solve for x
    x = 24,288,292,090.44/204,023.40
  6. Step 6: Final answer
    x = 119,046.60

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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.