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Finding the Fourth Proportional to 323,524.80, 485,200.80 and 113,140.80

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Solution

The fourth proportional to 323,524.80, 485,200.80 and 113,140.80 is: 169,680.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,524.80 : 485,200.80 = 113,140.80 : x
  2. Step 2: Convert to fraction form
    323,524.80/485,200.80 = 113,140.80/x
  3. Step 3: Cross multiply
    323,524.80x = 485,200.80 × 113,140.80
  4. Step 4: Simplify right side
    323,524.80x = 54,896,006,672.64
  5. Step 5: Solve for x
    x = 54,896,006,672.64/323,524.80
  6. Step 6: Final answer
    x = 169,680.98

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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.