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Finding the Fourth Proportional to 347,221.68, 520,660.22 and 110,533.60

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Solution

The fourth proportional to 347,221.68, 520,660.22 and 110,533.60 is: 165,745.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,221.68 : 520,660.22 = 110,533.60 : x
  2. Step 2: Convert to fraction form
    347,221.68/520,660.22 = 110,533.60/x
  3. Step 3: Cross multiply
    347,221.68x = 520,660.22 × 110,533.60
  4. Step 4: Simplify right side
    347,221.68x = 57,550,448,493.39
  5. Step 5: Solve for x
    x = 57,550,448,493.39/347,221.68
  6. Step 6: Final answer
    x = 165,745.55

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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.