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Finding the Fourth Proportional to 72,082.33, 108,143.22 and 34,673.68

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Solution

The fourth proportional to 72,082.33, 108,143.22 and 34,673.68 is: 52,020.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,082.33 : 108,143.22 = 34,673.68 : x
  2. Step 2: Convert to fraction form
    72,082.33/108,143.22 = 34,673.68/x
  3. Step 3: Cross multiply
    72,082.33x = 108,143.22 × 34,673.68
  4. Step 4: Simplify right side
    72,082.33x = 3,749,723,404.45
  5. Step 5: Solve for x
    x = 3,749,723,404.45/72,082.33
  6. Step 6: Final answer
    x = 52,020.01

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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.