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Finding the Fourth Proportional to 72,363.44, 108,564.60 and 25,649.36

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Solution

The fourth proportional to 72,363.44, 108,564.60 and 25,649.36 is: 38,480.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,363.44 : 108,564.60 = 25,649.36 : x
  2. Step 2: Convert to fraction form
    72,363.44/108,564.60 = 25,649.36/x
  3. Step 3: Cross multiply
    72,363.44x = 108,564.60 × 25,649.36
  4. Step 4: Simplify right side
    72,363.44x = 2,784,612,508.66
  5. Step 5: Solve for x
    x = 2,784,612,508.66/72,363.44
  6. Step 6: Final answer
    x = 38,480.93

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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.