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Finding the Fourth Proportional to 111,219, 166,835.78 and 44,650.36

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Solution

The fourth proportional to 111,219, 166,835.78 and 44,650.36 is: 66,978.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,219 : 166,835.78 = 44,650.36 : x
  2. Step 2: Convert to fraction form
    111,219/166,835.78 = 44,650.36/x
  3. Step 3: Cross multiply
    111,219x = 166,835.78 × 44,650.36
  4. Step 4: Simplify right side
    111,219x = 7,449,277,637.88
  5. Step 5: Solve for x
    x = 7,449,277,637.88/111,219
  6. Step 6: Final answer
    x = 66,978.46

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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.