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Finding the Fourth Proportional to 67,203.15, 100,640.70 and 32,101.80

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Solution

The fourth proportional to 67,203.15, 100,640.70 and 32,101.80 is: 48,074.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,203.15 : 100,640.70 = 32,101.80 : x
  2. Step 2: Convert to fraction form
    67,203.15/100,640.70 = 32,101.80/x
  3. Step 3: Cross multiply
    67,203.15x = 100,640.70 × 32,101.80
  4. Step 4: Simplify right side
    67,203.15x = 3,230,747,623.26
  5. Step 5: Solve for x
    x = 3,230,747,623.26/67,203.15
  6. Step 6: Final answer
    x = 48,074.35

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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.