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Finding the Fourth Proportional to 323,909.85, 485,208.68 and 183,504.45

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Solution

The fourth proportional to 323,909.85, 485,208.68 and 183,504.45 is: 274,884.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,909.85 : 485,208.68 = 183,504.45 : x
  2. Step 2: Convert to fraction form
    323,909.85/485,208.68 = 183,504.45/x
  3. Step 3: Cross multiply
    323,909.85x = 485,208.68 × 183,504.45
  4. Step 4: Simplify right side
    323,909.85x = 89,037,951,041.10
  5. Step 5: Solve for x
    x = 89,037,951,041.10/323,909.85
  6. Step 6: Final answer
    x = 274,884.98

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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.