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Finding the Fourth Proportional to 73,203.12, 109,811.40 and 33,771.12

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Solution

The fourth proportional to 73,203.12, 109,811.40 and 33,771.12 is: 50,659.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,203.12 : 109,811.40 = 33,771.12 : x
  2. Step 2: Convert to fraction form
    73,203.12/109,811.40 = 33,771.12/x
  3. Step 3: Cross multiply
    73,203.12x = 109,811.40 × 33,771.12
  4. Step 4: Simplify right side
    73,203.12x = 3,708,453,966.77
  5. Step 5: Solve for x
    x = 3,708,453,966.77/73,203.12
  6. Step 6: Final answer
    x = 50,659.78

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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.