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Finding the Fourth Proportional to 71,081.03, 106,585.89 and 23,679.45

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Solution

The fourth proportional to 71,081.03, 106,585.89 and 23,679.45 is: 35,507.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,081.03 : 106,585.89 = 23,679.45 : x
  2. Step 2: Convert to fraction form
    71,081.03/106,585.89 = 23,679.45/x
  3. Step 3: Cross multiply
    71,081.03x = 106,585.89 × 23,679.45
  4. Step 4: Simplify right side
    71,081.03x = 2,523,895,608.26
  5. Step 5: Solve for x
    x = 2,523,895,608.26/71,081.03
  6. Step 6: Final answer
    x = 35,507.30

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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.