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Finding the Fourth Proportional to 73,170.40, 109,723.60 and 33,714.40

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Solution

The fourth proportional to 73,170.40, 109,723.60 and 33,714.40 is: 50,556.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,170.40 : 109,723.60 = 33,714.40 : x
  2. Step 2: Convert to fraction form
    73,170.40/109,723.60 = 33,714.40/x
  3. Step 3: Cross multiply
    73,170.40x = 109,723.60 × 33,714.40
  4. Step 4: Simplify right side
    73,170.40x = 3,699,265,339.84
  5. Step 5: Solve for x
    x = 3,699,265,339.84/73,170.40
  6. Step 6: Final answer
    x = 50,556.86

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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.