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Finding the Fourth Proportional to 71,865.22, 99,175.05 and 41,652.64

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Solution

The fourth proportional to 71,865.22, 99,175.05 and 41,652.64 is: 57,481.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,865.22 : 99,175.05 = 41,652.64 : x
  2. Step 2: Convert to fraction form
    71,865.22/99,175.05 = 41,652.64/x
  3. Step 3: Cross multiply
    71,865.22x = 99,175.05 × 41,652.64
  4. Step 4: Simplify right side
    71,865.22x = 4,130,902,654.63
  5. Step 5: Solve for x
    x = 4,130,902,654.63/71,865.22
  6. Step 6: Final answer
    x = 57,481.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.