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Finding the Fourth Proportional to 100,347.20, 150,543.28 and 33,782.20

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Solution

The fourth proportional to 100,347.20, 150,543.28 and 33,782.20 is: 50,680.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,347.20 : 150,543.28 = 33,782.20 : x
  2. Step 2: Convert to fraction form
    100,347.20/150,543.28 = 33,782.20/x
  3. Step 3: Cross multiply
    100,347.20x = 150,543.28 × 33,782.20
  4. Step 4: Simplify right side
    100,347.20x = 5,085,683,193.62
  5. Step 5: Solve for x
    x = 5,085,683,193.62/100,347.20
  6. Step 6: Final answer
    x = 50,680.87

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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.