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Finding the Fourth Proportional to 73,673.10, 110,489.42 and 20,352.34

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Solution

The fourth proportional to 73,673.10, 110,489.42 and 20,352.34 is: 30,522.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,673.10 : 110,489.42 = 20,352.34 : x
  2. Step 2: Convert to fraction form
    73,673.10/110,489.42 = 20,352.34/x
  3. Step 3: Cross multiply
    73,673.10x = 110,489.42 × 20,352.34
  4. Step 4: Simplify right side
    73,673.10x = 2,248,718,242.24
  5. Step 5: Solve for x
    x = 2,248,718,242.24/73,673.10
  6. Step 6: Final answer
    x = 30,522.92

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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.