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Finding the Fourth Proportional to 103,683.20, 155,524.80 and 33,612.80

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Solution

The fourth proportional to 103,683.20, 155,524.80 and 33,612.80 is: 50,419.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,683.20 : 155,524.80 = 33,612.80 : x
  2. Step 2: Convert to fraction form
    103,683.20/155,524.80 = 33,612.80/x
  3. Step 3: Cross multiply
    103,683.20x = 155,524.80 × 33,612.80
  4. Step 4: Simplify right side
    103,683.20x = 5,227,623,997.44
  5. Step 5: Solve for x
    x = 5,227,623,997.44/103,683.20
  6. Step 6: Final answer
    x = 50,419.20

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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.