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Finding the Fourth Proportional to 71,635.51, 98,851.22 and 41,422.79

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Solution

The fourth proportional to 71,635.51, 98,851.22 and 41,422.79 is: 57,160.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,635.51 : 98,851.22 = 41,422.79 : x
  2. Step 2: Convert to fraction form
    71,635.51/98,851.22 = 41,422.79/x
  3. Step 3: Cross multiply
    71,635.51x = 98,851.22 × 41,422.79
  4. Step 4: Simplify right side
    71,635.51x = 4,094,693,327.30
  5. Step 5: Solve for x
    x = 4,094,693,327.30/71,635.51
  6. Step 6: Final answer
    x = 57,160.11

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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.