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Finding the Fourth Proportional to 73,223.40, 109,835.10 and 43,674.60

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Solution

The fourth proportional to 73,223.40, 109,835.10 and 43,674.60 is: 65,511.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,223.40 : 109,835.10 = 43,674.60 : x
  2. Step 2: Convert to fraction form
    73,223.40/109,835.10 = 43,674.60/x
  3. Step 3: Cross multiply
    73,223.40x = 109,835.10 × 43,674.60
  4. Step 4: Simplify right side
    73,223.40x = 4,797,004,058.46
  5. Step 5: Solve for x
    x = 4,797,004,058.46/73,223.40
  6. Step 6: Final answer
    x = 65,511.90

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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.