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Finding the Fourth Proportional to 73,139.76, 109,626.84 and 33,615.24

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Solution

The fourth proportional to 73,139.76, 109,626.84 and 33,615.24 is: 50,384.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,139.76 : 109,626.84 = 33,615.24 : x
  2. Step 2: Convert to fraction form
    73,139.76/109,626.84 = 33,615.24/x
  3. Step 3: Cross multiply
    73,139.76x = 109,626.84 × 33,615.24
  4. Step 4: Simplify right side
    73,139.76x = 3,685,132,537.04
  5. Step 5: Solve for x
    x = 3,685,132,537.04/73,139.76
  6. Step 6: Final answer
    x = 50,384.80

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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.