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Finding the Fourth Proportional to 71,610.21, 98,835.03 and 41,391.36

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Solution

The fourth proportional to 71,610.21, 98,835.03 and 41,391.36 is: 57,127.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,610.21 : 98,835.03 = 41,391.36 : x
  2. Step 2: Convert to fraction form
    71,610.21/98,835.03 = 41,391.36/x
  3. Step 3: Cross multiply
    71,610.21x = 98,835.03 × 41,391.36
  4. Step 4: Simplify right side
    71,610.21x = 4,090,916,307.34
  5. Step 5: Solve for x
    x = 4,090,916,307.34/71,610.21
  6. Step 6: Final answer
    x = 57,127.56

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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.