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Finding the Fourth Proportional to 72,308.94, 108,478.62 and 24,928.44

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Solution

The fourth proportional to 72,308.94, 108,478.62 and 24,928.44 is: 37,397.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,308.94 : 108,478.62 = 24,928.44 : x
  2. Step 2: Convert to fraction form
    72,308.94/108,478.62 = 24,928.44/x
  3. Step 3: Cross multiply
    72,308.94x = 108,478.62 × 24,928.44
  4. Step 4: Simplify right side
    72,308.94x = 2,704,202,769.95
  5. Step 5: Solve for x
    x = 2,704,202,769.95/72,308.94
  6. Step 6: Final answer
    x = 37,397.90

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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.