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Finding the Fourth Proportional to 72,160.34, 108,244.15 and 22,274.56

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Solution

The fourth proportional to 72,160.34, 108,244.15 and 22,274.56 is: 33,412.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,160.34 : 108,244.15 = 22,274.56 : x
  2. Step 2: Convert to fraction form
    72,160.34/108,244.15 = 22,274.56/x
  3. Step 3: Cross multiply
    72,160.34x = 108,244.15 × 22,274.56
  4. Step 4: Simplify right side
    72,160.34x = 2,411,090,893.44
  5. Step 5: Solve for x
    x = 2,411,090,893.44/72,160.34
  6. Step 6: Final answer
    x = 33,412.97

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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.