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Finding the Fourth Proportional to 72,207.38, 108,269.38 and 22,274.07

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Solution

The fourth proportional to 72,207.38, 108,269.38 and 22,274.07 is: 33,398.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,207.38 : 108,269.38 = 22,274.07 : x
  2. Step 2: Convert to fraction form
    72,207.38/108,269.38 = 22,274.07/x
  3. Step 3: Cross multiply
    72,207.38x = 108,269.38 × 22,274.07
  4. Step 4: Simplify right side
    72,207.38x = 2,411,600,042.47
  5. Step 5: Solve for x
    x = 2,411,600,042.47/72,207.38
  6. Step 6: Final answer
    x = 33,398.25

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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.