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Finding the Fourth Proportional to 72,370.56, 108,568.92 and 22,447.20

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Solution

The fourth proportional to 72,370.56, 108,568.92 and 22,447.20 is: 33,674.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,370.56 : 108,568.92 = 22,447.20 : x
  2. Step 2: Convert to fraction form
    72,370.56/108,568.92 = 22,447.20/x
  3. Step 3: Cross multiply
    72,370.56x = 108,568.92 × 22,447.20
  4. Step 4: Simplify right side
    72,370.56x = 2,437,068,261.02
  5. Step 5: Solve for x
    x = 2,437,068,261.02/72,370.56
  6. Step 6: Final answer
    x = 33,674.86

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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.