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Finding the Fourth Proportional to 70,898.52, 97,839.99 and 39,067.14

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Solution

The fourth proportional to 70,898.52, 97,839.99 and 39,067.14 is: 53,912.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,898.52 : 97,839.99 = 39,067.14 : x
  2. Step 2: Convert to fraction form
    70,898.52/97,839.99 = 39,067.14/x
  3. Step 3: Cross multiply
    70,898.52x = 97,839.99 × 39,067.14
  4. Step 4: Simplify right side
    70,898.52x = 3,822,328,586.93
  5. Step 5: Solve for x
    x = 3,822,328,586.93/70,898.52
  6. Step 6: Final answer
    x = 53,912.67

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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.