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Finding the Fourth Proportional to 100,612.76, 150,949.32 and 40,610.37

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Solution

The fourth proportional to 100,612.76, 150,949.32 and 40,610.37 is: 60,927.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,612.76 : 150,949.32 = 40,610.37 : x
  2. Step 2: Convert to fraction form
    100,612.76/150,949.32 = 40,610.37/x
  3. Step 3: Cross multiply
    100,612.76x = 150,949.32 × 40,610.37
  4. Step 4: Simplify right side
    100,612.76x = 6,130,107,736.45
  5. Step 5: Solve for x
    x = 6,130,107,736.45/100,612.76
  6. Step 6: Final answer
    x = 60,927.74

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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.