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Finding the Fourth Proportional to 71,969.01, 99,322.11 and 41,754.35

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Solution

The fourth proportional to 71,969.01, 99,322.11 and 41,754.35 is: 57,623.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,969.01 : 99,322.11 = 41,754.35 : x
  2. Step 2: Convert to fraction form
    71,969.01/99,322.11 = 41,754.35/x
  3. Step 3: Cross multiply
    71,969.01x = 99,322.11 × 41,754.35
  4. Step 4: Simplify right side
    71,969.01x = 4,147,129,438.30
  5. Step 5: Solve for x
    x = 4,147,129,438.30/71,969.01
  6. Step 6: Final answer
    x = 57,623.82

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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.