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Finding the Fourth Proportional to 72,478.25, 108,727.63 and 22,563.39

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Solution

The fourth proportional to 72,478.25, 108,727.63 and 22,563.39 is: 33,848.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,478.25 : 108,727.63 = 22,563.39 : x
  2. Step 2: Convert to fraction form
    72,478.25/108,727.63 = 22,563.39/x
  3. Step 3: Cross multiply
    72,478.25x = 108,727.63 × 22,563.39
  4. Step 4: Simplify right side
    72,478.25x = 2,453,263,863.06
  5. Step 5: Solve for x
    x = 2,453,263,863.06/72,478.25
  6. Step 6: Final answer
    x = 33,848.28

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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.