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Finding the Fourth Proportional to 72,204.60, 108,287.70 and 22,284.60

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Solution

The fourth proportional to 72,204.60, 108,287.70 and 22,284.60 is: 33,420.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,204.60 : 108,287.70 = 22,284.60 : x
  2. Step 2: Convert to fraction form
    72,204.60/108,287.70 = 22,284.60/x
  3. Step 3: Cross multiply
    72,204.60x = 108,287.70 × 22,284.60
  4. Step 4: Simplify right side
    72,204.60x = 2,413,148,079.42
  5. Step 5: Solve for x
    x = 2,413,148,079.42/72,204.60
  6. Step 6: Final answer
    x = 33,420.97

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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.