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Finding the Fourth Proportional to 72,295.54, 108,426.90 and 32,293.49

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Solution

The fourth proportional to 72,295.54, 108,426.90 and 32,293.49 is: 48,432.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,295.54 : 108,426.90 = 32,293.49 : x
  2. Step 2: Convert to fraction form
    72,295.54/108,426.90 = 32,293.49/x
  3. Step 3: Cross multiply
    72,295.54x = 108,426.90 × 32,293.49
  4. Step 4: Simplify right side
    72,295.54x = 3,501,482,589.85
  5. Step 5: Solve for x
    x = 3,501,482,589.85/72,295.54
  6. Step 6: Final answer
    x = 48,432.90

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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.