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Finding the Fourth Proportional to 100,610.58, 150,775.69 and 75,621.48

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Solution

The fourth proportional to 100,610.58, 150,775.69 and 75,621.48 is: 113,326.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,610.58 : 150,775.69 = 75,621.48 : x
  2. Step 2: Convert to fraction form
    100,610.58/150,775.69 = 75,621.48/x
  3. Step 3: Cross multiply
    100,610.58x = 150,775.69 × 75,621.48
  4. Step 4: Simplify right side
    100,610.58x = 11,401,880,825.82
  5. Step 5: Solve for x
    x = 11,401,880,825.82/100,610.58
  6. Step 6: Final answer
    x = 113,326.86

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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.