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Finding the Fourth Proportional to 66,755.92, 100,151.16 and 25,203.28

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Solution

The fourth proportional to 66,755.92, 100,151.16 and 25,203.28 is: 37,811.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,755.92 : 100,151.16 = 25,203.28 : x
  2. Step 2: Convert to fraction form
    66,755.92/100,151.16 = 25,203.28/x
  3. Step 3: Cross multiply
    66,755.92x = 100,151.16 × 25,203.28
  4. Step 4: Simplify right side
    66,755.92x = 2,524,137,727.80
  5. Step 5: Solve for x
    x = 2,524,137,727.80/66,755.92
  6. Step 6: Final answer
    x = 37,811.44

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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.