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Finding the Fourth Proportional to 73,717.50, 101,730.96 and 40,183.50

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Solution

The fourth proportional to 73,717.50, 101,730.96 and 40,183.50 is: 55,453.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,717.50 : 101,730.96 = 40,183.50 : x
  2. Step 2: Convert to fraction form
    73,717.50/101,730.96 = 40,183.50/x
  3. Step 3: Cross multiply
    73,717.50x = 101,730.96 × 40,183.50
  4. Step 4: Simplify right side
    73,717.50x = 4,087,906,031.16
  5. Step 5: Solve for x
    x = 4,087,906,031.16/73,717.50
  6. Step 6: Final answer
    x = 55,453.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.