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Finding the Fourth Proportional to 73,129.40, 109,662.10 and 33,673.40

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Solution

The fourth proportional to 73,129.40, 109,662.10 and 33,673.40 is: 50,495.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,129.40 : 109,662.10 = 33,673.40 : x
  2. Step 2: Convert to fraction form
    73,129.40/109,662.10 = 33,673.40/x
  3. Step 3: Cross multiply
    73,129.40x = 109,662.10 × 33,673.40
  4. Step 4: Simplify right side
    73,129.40x = 3,692,695,758.14
  5. Step 5: Solve for x
    x = 3,692,695,758.14/73,129.40
  6. Step 6: Final answer
    x = 50,495.37

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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.