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Finding the Fourth Proportional to 72,364.43, 108,548.09 and 47,562.59

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Solution

The fourth proportional to 72,364.43, 108,548.09 and 47,562.59 is: 71,344.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,364.43 : 108,548.09 = 47,562.59 : x
  2. Step 2: Convert to fraction form
    72,364.43/108,548.09 = 47,562.59/x
  3. Step 3: Cross multiply
    72,364.43x = 108,548.09 × 47,562.59
  4. Step 4: Simplify right side
    72,364.43x = 5,162,828,299.95
  5. Step 5: Solve for x
    x = 5,162,828,299.95/72,364.43
  6. Step 6: Final answer
    x = 71,344.83

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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.