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Finding the Fourth Proportional to 72,429.44, 108,652.05 and 34,982.33

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Solution

The fourth proportional to 72,429.44, 108,652.05 and 34,982.33 is: 52,477.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,429.44 : 108,652.05 = 34,982.33 : x
  2. Step 2: Convert to fraction form
    72,429.44/108,652.05 = 34,982.33/x
  3. Step 3: Cross multiply
    72,429.44x = 108,652.05 × 34,982.33
  4. Step 4: Simplify right side
    72,429.44x = 3,800,901,325.02
  5. Step 5: Solve for x
    x = 3,800,901,325.02/72,429.44
  6. Step 6: Final answer
    x = 52,477.30

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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.