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Finding the Fourth Proportional to 323,988.69, 486,199.95 and 134,449.24

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Solution

The fourth proportional to 323,988.69, 486,199.95 and 134,449.24 is: 201,763.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,988.69 : 486,199.95 = 134,449.24 : x
  2. Step 2: Convert to fraction form
    323,988.69/486,199.95 = 134,449.24/x
  3. Step 3: Cross multiply
    323,988.69x = 486,199.95 × 134,449.24
  4. Step 4: Simplify right side
    323,988.69x = 65,369,213,765.54
  5. Step 5: Solve for x
    x = 65,369,213,765.54/323,988.69
  6. Step 6: Final answer
    x = 201,763.88

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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.