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Finding the Fourth Proportional to 72,207.63, 108,269.76 and 22,274.32

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Solution

The fourth proportional to 72,207.63, 108,269.76 and 22,274.32 is: 33,398.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,207.63 : 108,269.76 = 22,274.32 : x
  2. Step 2: Convert to fraction form
    72,207.63/108,269.76 = 22,274.32/x
  3. Step 3: Cross multiply
    72,207.63x = 108,269.76 × 22,274.32
  4. Step 4: Simplify right side
    72,207.63x = 2,411,635,551.24
  5. Step 5: Solve for x
    x = 2,411,635,551.24/72,207.63
  6. Step 6: Final answer
    x = 33,398.62

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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.