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Finding the Fourth Proportional to 73,207.70, 109,738.65 and 33,695.90

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Solution

The fourth proportional to 73,207.70, 109,738.65 and 33,695.90 is: 50,510.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,207.70 : 109,738.65 = 33,695.90 : x
  2. Step 2: Convert to fraction form
    73,207.70/109,738.65 = 33,695.90/x
  3. Step 3: Cross multiply
    73,207.70x = 109,738.65 × 33,695.90
  4. Step 4: Simplify right side
    73,207.70x = 3,697,742,576.54
  5. Step 5: Solve for x
    x = 3,697,742,576.54/73,207.70
  6. Step 6: Final answer
    x = 50,510.30

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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.