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Finding the Fourth Proportional to 61,343.40, 91,950.30 and 34,991.40

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Solution

The fourth proportional to 61,343.40, 91,950.30 and 34,991.40 is: 52,450.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,343.40 : 91,950.30 = 34,991.40 : x
  2. Step 2: Convert to fraction form
    61,343.40/91,950.30 = 34,991.40/x
  3. Step 3: Cross multiply
    61,343.40x = 91,950.30 × 34,991.40
  4. Step 4: Simplify right side
    61,343.40x = 3,217,469,727.42
  5. Step 5: Solve for x
    x = 3,217,469,727.42/61,343.40
  6. Step 6: Final answer
    x = 52,450.14

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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.