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Finding the Fourth Proportional to 100,611.58, 150,777.19 and 75,622.48

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Solution

The fourth proportional to 100,611.58, 150,777.19 and 75,622.48 is: 113,328.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,611.58 : 150,777.19 = 75,622.48 : x
  2. Step 2: Convert to fraction form
    100,611.58/150,777.19 = 75,622.48/x
  3. Step 3: Cross multiply
    100,611.58x = 150,777.19 × 75,622.48
  4. Step 4: Simplify right side
    100,611.58x = 11,402,145,035.23
  5. Step 5: Solve for x
    x = 11,402,145,035.23/100,611.58
  6. Step 6: Final answer
    x = 113,328.36

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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.