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Finding the Fourth Proportional to 52,527.87, 78,676.05 and 43,418.55

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Solution

The fourth proportional to 52,527.87, 78,676.05 and 43,418.55 is: 65,032.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,527.87 : 78,676.05 = 43,418.55 : x
  2. Step 2: Convert to fraction form
    52,527.87/78,676.05 = 43,418.55/x
  3. Step 3: Cross multiply
    52,527.87x = 78,676.05 × 43,418.55
  4. Step 4: Simplify right side
    52,527.87x = 3,416,000,010.73
  5. Step 5: Solve for x
    x = 3,416,000,010.73/52,527.87
  6. Step 6: Final answer
    x = 65,032.14

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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.