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Finding the Fourth Proportional to 72,102.65, 108,154.22 and 22,182.41

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Solution

The fourth proportional to 72,102.65, 108,154.22 and 22,182.41 is: 33,273.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,102.65 : 108,154.22 = 22,182.41 : x
  2. Step 2: Convert to fraction form
    72,102.65/108,154.22 = 22,182.41/x
  3. Step 3: Cross multiply
    72,102.65x = 108,154.22 × 22,182.41
  4. Step 4: Simplify right side
    72,102.65x = 2,399,120,599.59
  5. Step 5: Solve for x
    x = 2,399,120,599.59/72,102.65
  6. Step 6: Final answer
    x = 33,273.68

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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.