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Finding the Fourth Proportional to 72,323.70, 108,555.60 and 34,910.04

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Solution

The fourth proportional to 72,323.70, 108,555.60 and 34,910.04 is: 52,398.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,323.70 : 108,555.60 = 34,910.04 : x
  2. Step 2: Convert to fraction form
    72,323.70/108,555.60 = 34,910.04/x
  3. Step 3: Cross multiply
    72,323.70x = 108,555.60 × 34,910.04
  4. Step 4: Simplify right side
    72,323.70x = 3,789,680,338.22
  5. Step 5: Solve for x
    x = 3,789,680,338.22/72,323.70
  6. Step 6: Final answer
    x = 52,398.87

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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.