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Finding the Fourth Proportional to 133,676.80, 200,456.40 and 40,160.80

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Solution

The fourth proportional to 133,676.80, 200,456.40 and 40,160.80 is: 60,223.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,676.80 : 200,456.40 = 40,160.80 : x
  2. Step 2: Convert to fraction form
    133,676.80/200,456.40 = 40,160.80/x
  3. Step 3: Cross multiply
    133,676.80x = 200,456.40 × 40,160.80
  4. Step 4: Simplify right side
    133,676.80x = 8,050,489,389.12
  5. Step 5: Solve for x
    x = 8,050,489,389.12/133,676.80
  6. Step 6: Final answer
    x = 60,223.53

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1.5x scale

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.